Calculated result
Enter values and select Calculate.
Trade-specific model
Purchase cost = shares × buy price + buy fee. Net sale proceeds = shares × sell price − sell fee. Profit or loss is proceeds minus cost; return divides that difference by purchase cost.
Market and tax boundary
Prices are entered by the user. No ticker, brokerage, tax-lot, wash-sale, capital-gains, or live-price data is used, and the result is not investment advice.
Worked example
The editable example above demonstrates the complete formula with visible assumptions. Select Calculate to inspect the resulting values.