Gain / Loss Percentage Calculator
Calculate exact percentage profit/loss, required recovery percentage after a loss, and absolute dollar gains across financial assets.
Evaluating Absolute vs Percentage Capital Gains
Measuring investment performance requires evaluating percentage gains rather than raw dollar returns. A $1,000 profit on a $2,000 account represents a 50% return, whereas the same $1,000 profit on a $100,000 account is a 1% gain.
Percentage Change Equation
Percentage Gain/Loss = ((Final Value − Initial Value) ÷ Initial Value) × 100. A positive result indicates net gain %, while a negative result shows percentage loss.
How to Use This Gain / Loss Calculator
Enter your starting investment value and ending portfolio value. The calculator computes total dollar return, percentage gain or loss, and required recovery percentage.
Avoiding the Percent Gain Fallacy
A common mistake is believing that adding 10% and then losing 10% brings you back to even. Starting with $100 + 10% = $110. Subtracting 10% from $110 leaves $99—a net loss of 1%.
Frequently Asked Questions
How do I calculate percentage return on investment?
Subtract starting value from ending value, divide by starting value, and multiply by 100.
Why is percentage gain important in portfolio benchmarking?
Percentage returns allow fair performance comparison across portfolios of different account sizes.