Percentage Calculator
A percentage calculator handles three common calculations: what is X percent of Y, X is what percent of Y, and percent change between X and Y. These three operations cover most everyday percentage needs. Shoppers calculate discounts. Students compute grades. Financial planners analyze returns. Each calculation includes clear explanations so you understand the result. The first mode multiplies X by Y/100 to find a percentage. The second mode divides X by Y and multiplies by 100. The third mode calculates (new - old) / old × 100 for percent change. Each calculation shows the formula and step-by-step result. All results are displayed with appropriate precision. Calculating sale discounts and final prices. Computing test scores and grade percentages. Analyzing financial growth or decline rates. Determining tax amounts. Calculating tip percentages. Understanding statistical data. Comparing proportions across different datasets. Percent change can be positive or negative. A 100% increase means doubling, while a 50% decrease means halving. Be careful with percentage points vs percent when comparing changes. For compound percentages, calculate step by step rather than adding percentages together. Related tools: BMI Calculator, Age Calculator, Tip Calculator, Discount / Sale Calculator, Loan / Mortgage Calculator. Browse all 123 free tools on the KitCraft home page.