Percentage Gain/Loss Calculator

How the calculation works

Percent change scales the move by entry price: (exit − entry) ÷ entry × 100. Dollar change multiplies the same price difference by share count. Together they show both relative and absolute impact of a move from a chosen entry to exit.

Formula & example

% change = (exit − entry) ÷ entry × 100; $ change = (exit − entry) × shares

Buy at $40, sell at $46, 100 shares → +15% and +$600.

Why use this calculator

Percent alone can mislead on small positions; dollars alone hide how large the move was. Showing both prevents mixing up a big percent on tiny size with a small percent on large size.

When to use it

Use for quick what-if checks on a name you already understand — before opening a fuller P&L ticket with fees.

Tips for accurate results

• Negative percent means a loss from entry.
• Fees are ignored here — see Stock P&L for commissions.

FAQ