PERCENTAGE CALCULATOR

Percentage calculations are ubiquitous in trading and investing. Whether you are calculating your profit or loss on a position, estimating how far an asset has fallen from its all-time high, determining the percentage change between two prices, or figuring out what price represents a specific percentage recovery from a drawdown, accurate percentage math is foundational to clear thinking about market positions.

This calculator handles the three most common types of percentage calculations traders need. The first is a straightforward percentage of a number — 'what is X% of Y?' — useful for position sizing and fee calculations. The second is percentage change between two values — 'by what percentage did the price change?' — useful for performance measurement. The third is reverse percentage — 'what value represents X% more or less than Y?' — useful for calculating target prices, stop-losses, and recovery levels.

One common source of confusion in crypto is the asymmetry between drawdown and recovery percentages. An asset that falls 50% needs to rise 100% to return to its starting level. An asset that falls 80% needs to rise 400%. This asymmetry means the severity of a drawdown is far more consequential for long-term portfolio performance than it initially appears — and it makes position sizing and stop-losses critical tools for managing long-term compounding.