Calculate what percentage one number is of another instantly.
The Percentage Calculator is a versatile mathematical tool that simplifies common percentage problems. Whether you are calculating a tip at a restaurant, determining a discount, or analyzing statistics, this all-in-one calculator handles it. It includes modes for: "What is X% of Y?" (finding a portion), "X is what % of Y?" (finding the ratio), and "Percentage Change" (calculating the increase or decrease between two values). It eliminates the need to remember complex formulas and gives you instant, accurate results for finance, school, or daily life.