A rise in Bitcoin’s quoted price is not necessarily your net return. The result depends on the units acquired, cash paid, fees and actual sale proceeds. Use a consistent cost convention and currency, then distinguish an unrealised valuation from a completed outcome.
Example excludes additional selling costs, tax, funding and costs not entered into the calculation.
BTKWIN.COM · EDUCATIONAL EXAMPLEChoose the result you want to measure
Price return measures the change between two unit prices. Personal investment return compares what you received with what you actually committed. These are different calculations. A chart showing a 20% increase does not establish a 20% increase in your available cash after costs, especially when the purchase quantity was reduced by a fee-inclusive budget.
State the measurement currency and period. A result in US dollars is not automatically the same percentage in another currency, because exchange rates can change. Also state whether the position was sold. An estimate based on a selected sale price is a scenario until actual execution and payment records establish the outcome.
Convert the budget into a quantity
In BTKWIN’s profit and loss calculator, the purchase budget includes the proportional buying fee. With budget B, purchase price P and fee fraction f, the quantity is B divided by P times (1 + f). This convention treats the fee as an addition to the trade value, paid within the stated total budget.
For a hypothetical budget of 1,000 dollars, unit price of 100 and buying fee of 1%, the quantity is 1,000 ÷ 101, or approximately 9.9009901 units. The gross trade value is about 990.09901 dollars and the buying fee about 9.90099 dollars. Together they use the full 1,000-dollar budget.
If your receipt uses a different convention, do not force it into these inputs without adjustment. Some services deduct fees from the acquired asset or quote an inclusive effective price. For a completed purchase, actual cash outflow and actual net units are the strongest starting points.
Calculate the net sale
Gross sale value is the quantity multiplied by the sale price. Deduct the proportional sale fee and any additional sale cost included in the scenario. Under the same example, selling about 9.9009901 units at 120 gives approximately 1,188.11881 dollars gross. A 1% sale fee leaves about 1,176.23762 dollars.
| Hypothetical line | Value |
|---|---|
| Total purchase budget | $1,000.00 |
| Purchase / sale unit price | $100 / $120 |
| Buy / sell fee | 1% / 1% |
| Units acquired | 9.90099010 |
| Net sale, no extra cost | $1,176.24 |
| Net profit | $176.24 |
| Return on budget | 17.62% |
Net profit is net sale proceeds minus the original budget: approximately 176.23762 dollars. Divide by 1,000 and multiply by 100 for a return of approximately 17.62376%. Keep full precision during the calculation and round the presentation. Reusing a prematurely rounded quantity can create small reconciliation differences.
Find the break-even sale price
With positive fees on both sides, selling at the original purchase price generally does not recover the full budget under this convention. Break-even means the net proceeds equal the cash committed. For quantity Q, selling-fee fraction s and additional sale cost C, the required price is (B + C) divided by Q times (1 − s).
In the example with no additional selling cost, the break-even price is about 102.0202 dollars. A move from 100 to 100.50 is therefore insufficient to recover the budget under those assumptions. If an extra 5-dollar sale cost applies, the break-even price becomes about 102.5303. The extra fixed cost matters more for a smaller position.
Break-even is a calculated threshold, not a forecast or a reason the market must return to that level. It changes when costs, quantities or the measurement currency change. Do not use it as an automatic justification for continuing to hold an unsuitable exposure.
Test a loss scenario as carefully as a gain
If the example’s sale price is instead 80, net sale proceeds after the same 1% selling fee are about 784.15842 dollars. The loss is about 215.84158 dollars, or 21.58416% of the original budget. The quoted price fell 20%, while costs make the net percentage loss larger.
A loss and its required recovery are not equal percentages because their denominators differ. The loss recovery calculator shows that relationship. It does not predict a recovery. Use a downside scenario to understand the arithmetic before relying on an optimistic endpoint.
Keep valuations separate from cash flows
If no sale occurred, calling the scenario profit realised would be inaccurate. Record the selected valuation price, source and time, then label the result unrealised and before any costs not included. If only part of the holding sold, split the completed result from the remaining exposure.
Multiple deposits, purchases and partial sales make a one-purchase calculator an incomplete performance measure. Start with the individual transactions and, where appropriate, a weighted purchase-cost view. More complex cash-flow analysis may be needed to compare results over time. Do not add every deposit to a single denominator while ignoring when it entered the account.
Review the costs outside the model
Funding charges, currency conversion, withdrawal fees, financing, custody charges and taxes can affect the broader outcome. The calculator does not discover them automatically. Enter only the costs its fields represent and keep a separate list for others. Avoid adding a fee twice if it is already included in the actual receipt’s net amount.
Investor.gov explains the effect of fees on investment results. For your own calculation, retain the applicable schedule and actual records. Local tax treatment requires the relevant jurisdiction’s rules; an educational return percentage is not a tax determination.
Use a final reconciliation checklist
Match the initial cash paid, actual units, sale fills, fee currencies and net credited amount. Check that the same asset and reporting currency are used throughout. Document the period and any remaining holdings. A result is useful when another person can reproduce it from the record without guessing which charges were excluded.
Compare scenarios by changing one assumption at a time: sale price, fee rate or additional expense. This reveals why the outcome changes. It also keeps the calculator in its proper role: explaining the consequences of stated inputs, without recommending a purchase or implying that a positive future return is available.
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English content and examples reviewed: 27 October 2026. Read the Arabic edition.
