Percentage Calculator
PopularSolve any percentage problem with formulas and step-by-step math.
100% In-Browser
Result
30
Formula & Solution:
(20 ÷ 100) × 150 = 30
20% of 150 is equal to 30.
How to Use Percentage Calculator
1
Select mode
Choose the type of percentage problem you want to solve.
2
Enter values
Input your numbers into the respective fields.
3
View result & formula
Get the exact answer with the full mathematical solution.
Frequently Asked Questions
Percentage change calculates growth or decline relative to the starting original value, whereas percentage difference compares two values relative to their average.
Related Tools
More Calculators & ConvertersPopular
Discount Calculator
Calculators & ConvertersCalculate sale prices, savings amount, and final total with sales tax.
Free & In-BrowserOpen Tool
Sales Tax Calculator
Calculators & ConvertersCalculate sales tax forwards or reverse-calculate pre-tax amounts.
Free & In-BrowserOpen Tool
Profit Margin Calculator
Calculators & ConvertersCalculate gross profit, profit margin percentage, and markup percentage.
Free & In-BrowserOpen Tool