This free gain loss percentage calculator turns two numbers into a clean percent change, and then tells you the exact gain needed to recover a loss. Balance mode compares a starting balance with an ending balance. Price mode compares an entry price with an exit price and converts the move into pips and money. Every loss result also shows the recovery figure, because a 25% loss does not need a 25% gain to get back to even. It runs entirely in your browser and nothing is stored.
Gain and Loss Percentage Calculator
Use the same reference for both fields. Balance to balance, or equity to equity, never one of each.
Loss versus required recovery gain
Required gain = L / (100 - L) x 100, where L is the loss in percent.
What percent change actually measures
Percent change compares a new number to an old number. The formula is short. Subtract the start from the end. Divide that difference by the start. Multiply by 100. That is the entire calculation, and the tool above does it in both modes.
The denominator is where most people slip. You always divide by the starting value. Never by the ending value. A move from 10,000 to 12,500 is a 25% gain, because 2,500 divided by 10,000 is 0.25. The move back from 12,500 to 10,000 is not a 25% loss. It is 2,500 divided by 12,500, which is 20%. Same money in both directions. Different base, different percent.
The sign tells you the direction
A positive result means the value grew. A negative result means it shrank. The calculator prints the sign in front of the number and colours it, so a loss cannot be misread as a gain. It also prints the absolute change in your account currency, because percent alone hides the size of the move.
Why the base keeps moving
Percentages are not symmetric, and that is the root of everything below. After a win, the next percent is measured against a larger balance. After a loss, the next percent is measured against a smaller one. The base drifts under your feet with every closed trade. That single fact drives the recovery math in the next section.
The recovery math and why it is under-appreciated
Here is the second question the tool answers. You lost some percent of your account. What percent must you now gain to get back to where you started?
Write the loss as a decimal, L. After the loss you hold 1 minus L of the original amount. To return to 1, you must multiply what is left by 1 divided by (1 minus L). So the required gain is L divided by (1 minus L). Working in percent instead of decimals, a loss of L percent needs a gain of L divided by (100 minus L), times 100.
Run the numbers and the shape appears fast.
- Lose 10% and you need 11.11%.
- Lose 25% and you need 33.33%.
- Lose 50% and you need 100%.
- Lose 75% and you need 300%.
- Lose 90% and you need 900%.
The curve is flat, then it explodes
Below 10%, recovery costs only a little more than the loss. Past 30%, the gap opens quickly. Past 50%, the required gain grows faster than the loss that caused it. At 100% there is no recovery at all, because nothing is left to compound. That is why I call this the most under-appreciated number in trading. Traders track the loss. Almost nobody tracks the climb back.
Loss versus required recovery gain: reference table
These values are pre-computed from the same formula the calculator uses. The last column is the one worth memorising. It shows how much harder the recovery is than the loss itself.
| Loss taken | Left from 10,000 | Gain needed to get back to even | Gain as a multiple of the loss |
|---|---|---|---|
| 5% | 9,500 | 5.26% | 1.05x |
| 10% | 9,000 | 11.11% | 1.11x |
| 20% | 8,000 | 25.00% | 1.25x |
| 25% | 7,500 | 33.33% | 1.33x |
| 30% | 7,000 | 42.86% | 1.43x |
| 40% | 6,000 | 66.67% | 1.67x |
| 50% | 5,000 | 100.00% | 2.00x |
| 60% | 4,000 | 150.00% | 2.50x |
| 75% | 2,500 | 300.00% | 4.00x |
| 90% | 1,000 | 900.00% | 10.00x |
Read across the 50% row once. Half the account is gone. The remaining 5,000 must double before you are back to flat. Doubling an account is a full career milestone for many traders. One bad month can hand you that task.
A worked example on a 10,000 USD account
Take the default numbers in the tool. You start the quarter with 10,000 USD. A run of oversized trades ends the quarter at 7,500 USD. Enter both figures in balance mode and press Calculate.
The absolute change is minus 2,500 USD. The percent change is minus 25.00%, because 2,500 divided by 10,000 is 0.25. So far this is ordinary arithmetic. The interesting line is the orange recovery box underneath.
Reading the recovery figure
The recovery box shows 33.33%. That is 25 divided by 75, times 100. Your next 33.33% is measured against 7,500, not against 10,000. Gaining 25% on 7,500 returns 1,875 USD, which lands you at 9,375. Still short by 625. You need 2,500 on a base of 7,500, and that is one third of what is left.
What that means for the months ahead
Suppose your process realistically produces 2% per month on average. Recovering 33.33% then takes roughly fifteen months of that same average. The loss took a quarter. The repair takes over a year. This is arithmetic, not a projection of your results. It is also the clearest argument for keeping single losses small in the first place.
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Price mode: percent, pips and money on one trade
Balance mode looks at your account. Price mode looks at a single position. Switch the mode selector and six fields appear: entry price, exit price, direction, instrument, lots and pip value per lot.
The default example is a long EURUSD trade. You buy at 1.0850 and sell at 1.0910. The instrument selector sets the pip size to 0.0001. The move is 0.0060, so the tool reports 60.0 pips. With one standard lot and a 10 USD pip value, the money result is 600.00 USD.
Price percent is not account percent
The same trade shows a price change of only 0.55%. That is 0.0060 divided by 1.0850. Currency prices barely move in percentage terms, which is exactly why leverage exists in this market. Do not confuse the two numbers. A 0.55% price move produced a 6% account move on a 10,000 USD account at one lot. If you want that account-level figure, feed the money result back into balance mode.
Direction and pip conventions
Select short and the sign flips, so a fall in price becomes a gain. Instruments set the pip size automatically: 0.0001 on majors, 0.01 on JPY pairs, and 0.01 on gold using the common 100-ounce contract. If your broker quotes gold pips differently, adjust the pip value field to match. For a deeper breakdown of that conversion, use the pip value calculator, and check total position outcomes with the forex profit calculator.
Percent of what? Balance, equity and margin
A percentage is meaningless until you name its base. Three bases appear on every trading platform, and traders mix them up constantly.
Balance
Balance is the closed-trade total. It ignores open positions completely. Balance is the right base for reporting a finished period, such as a month or a quarter. It is stable, and it is what most brokers show on a statement.
Equity
Equity is balance plus the floating result of open trades. It moves every tick. Equity is the honest base during a live drawdown, because it includes the losses you have not booked yet. Many traders quote balance while their equity sits far lower. Compare like with like: enter balance in both fields, or equity in both fields, never one of each.
Margin
Margin is the deposit your broker locks against open positions. It is not a measure of your capital and it is never the right base for a percent return. A percent of margin says nothing about the money you actually risked. Size positions from balance or equity instead, using the position size calculator. If you want to see how deep an equity dip has gone, the drawdown calculator works from peak equity, which is the correct base for that job.
Why percent returns compare accounts fairly
Money results cannot be compared across accounts. A 2,000 USD gain is huge on a 5,000 USD account and trivial on a 500,000 USD one. Percent strips the account size out and leaves the performance behind.
This is why professional reporting is percentage-based. Funds report percent. Funded-account programs set targets and limits in percent. Any serious trade journal records percent alongside money, because only the percent column stays comparable as the account grows.
Percent also makes your own history comparable
Your account today is not the account you traded two years ago. A 300 USD month on a 3,000 USD account was a 10% month. The same 300 USD on a 30,000 USD account is 1%. Log both in money only and your progress looks flat. Log both in percent and the picture is honest. Percent is the only column that survives account growth, deposits and withdrawals.
Where percent alone misleads
Percent hides absolute scale, and scale matters for costs. Spreads, commissions and swap are charged in money, not in percent. On a very small account, fixed costs eat a larger share of every result. So keep both columns in your records. Percent for comparison, money for cost reality.
How the asymmetry argues for small risk per trade
Now connect the recovery curve to position sizing. Risk 1% per trade and five consecutive losses cost about 4.9% of the account. The recovery needed is roughly 5.2%. That is an ordinary week of work for most methods.
Risk 10% per trade and the same five losses cost 41%. The recovery needed jumps to about 69%. Risk 20% and five losses leave you down 67%, needing 205% to get back. The losing streak is identical in every case. Only the sizing changed, and the sizing decided whether the damage was routine or close to terminal.
Streaks are normal, not rare
Five losses in a row is not an unusual event. At a 50% winning percentage, a five-loss run appears regularly across a few hundred trades. Plan for it as normal weather. The risk of ruin calculator models how likely deep damage becomes at a given risk level, and the expectancy calculator shows what your average trade is worth before sizing enters the picture.
Small risk buys you time on the flat part of the curve
The practical rule falls straight out of the table. Stay in the region where recovery costs about the same as the loss. That region ends near 20% drawdown. Below it, the arithmetic is forgiving. Above it, the arithmetic turns against you fast. Sizing at 1% to 2% per trade keeps a normal losing streak inside the forgiving zone. To see the other side of the same curve, the compounding calculator shows how steady small percents build over time.
How to use this gain loss percentage calculator
- Pick the mode. Balance mode compares two account values. Price mode compares an entry price with an exit price on a single trade.
- Select your account currency. It only labels the money outputs, so pick the one your statement uses.
- In balance mode, enter the starting balance and the ending balance. Use the same reference for both, either balance or equity.
- In price mode, enter the entry and exit prices, choose long or short, and pick the instrument so the pip size is set correctly.
- Add lots and pip value per lot in price mode if you want a money result. Leave them at zero to see percent and pips only.
- Press Calculate. Read the percent change first, then the absolute change, then the recovery box if the result is a loss.
- Compare the recovery figure against the reference table below the tool. That tells you which part of the curve you are sitting on.
What this calculator cannot tell you
Honesty about limits matters more than a long feature list. This tool is arithmetic. It has no view on markets and no view on your method.
Costs, fees and cash flow stay invisible
The percent change is computed from the two numbers you type. It does not know about spread, commission, swap, or the deposit you made mid-month. If you added funds during the period, the raw balance comparison overstates your performance. Strip deposits and withdrawals out before you compare, or use a time-weighted method instead.
It says nothing about how long recovery takes
The recovery figure is a required percentage, not a schedule. Turning 33.33% into months requires an assumption about your average monthly return, and that assumption is the weakest link in any such estimate. The tool refuses to make it for you on purpose.
It does not model path or leverage limits
Real drawdowns hit margin calls, program limits and psychology long before the arithmetic runs out. An account down 60% may already have breached a funded-account rule and been closed. The math still prints 150%, but there may be no account left to trade. The calculator also assumes your pip value stays constant, which is untrue when your account currency differs from the quote currency and rates move.
It is not a plan
Knowing that a 25% loss needs 33.33% does not tell you how to earn it. Trying to earn it faster by raising risk is the exact behaviour the table warns against. Pair this page with the breakeven calculator for trade-level maths, browse the rest of the free forex tools, and read how every tool and indicator here is checked in the Editorial and Testing Policy. If you want indicators to build the entries themselves, start with the best MT4 indicators guide.
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FAQ
Why does a 50% loss need a 100% gain?
Because the base shrinks. A 50% loss on 10,000 leaves 5,000. Getting back to 10,000 means adding another 5,000. On a base of 5,000 that is a 100% gain.
What is the formula for the required recovery gain?
Required gain equals L divided by (100 minus L), times 100. L is the loss in percent. A 25% loss gives 25 divided by 75, times 100, or 33.33%.
Should I use balance or equity in the two fields?
Use the same one in both fields. Balance suits a finished period, because it counts closed trades only. Equity suits a live check, because it includes floating profit and loss. Mixing the two produces a percent that means nothing.
Why is the price percent so small compared to my account percent?
Currency prices move very little in percentage terms. The default example moves EURUSD 0.55%, yet one standard lot returns 600 USD. Leverage is the multiplier between the two figures.
Can I use this calculator to plan my recovery after a drawdown?
Yes, and sizing the task honestly is its real value. It shows the exact percentage you need on the reduced balance. That figure is usually larger than traders expect. It cannot tell you how long the climb takes. Treat every output as arithmetic and test any change on a demo account first. Results are not guaranteed; past performance is not indicative of future results.
External references
Rate of return on Wikipedia · Percentage change at Investopedia