utils logo UTILS
Free online tools to generate, calculate, convert, format, transform, and de/en-code.
 

Percentage Calculator

Calculate percentages, percentage increase/decrease, and solve various percentage problems.

What is X% of Y?

X is what % of Y?

X is Y% of what?

Percentage Increase/Decrease

Add or Subtract Percentage

Percentage Formulas

Basic Calculations

  • X% of Y: (X / 100) × Y
  • X is what % of Y: (X / Y) × 100
  • X is Y% of what: X / (Y / 100)

Change Calculations

  • Percentage Change: ((New - Old) / Old) × 100
  • Add X%: Number × (1 + X/100)
  • Subtract X%: Number × (1 - X/100)

Common Percentage Uses

Shopping & Sales

  • Calculate discounts
  • Find sale prices
  • Determine savings
  • Calculate tax amounts

Finance

  • Interest rates
  • Investment returns
  • Loan calculations
  • Budget allocations

Statistics

  • Grade calculations
  • Survey results
  • Growth rates
  • Data analysis

Examples

  • Shopping: A $50 shirt is 20% off. Sale price: $50 - (20% of $50) = $50 - $10 = $40
  • Grade: You got 45 out of 60 questions correct. Your score: (45/60) × 100 = 75%
  • Raise: Your salary increased from $50,000 to $55,000. Increase: ((55,000-50,000)/50,000) × 100 = 10%
  • Tax: A $100 item with 8% tax. Total: $100 + (8% of $100) = $100 + $8 = $108

Feedback

Help us improve this page by providing feedback:


Share with