Advanced Percentage Calculator

Calculate Y% of X

Result: 0

Calculate X increased or decreased by Y%

Result: 0

Calculate percentage difference between two values

Percentage Difference: 0%

Percentage Calculation Tips

  • Quick 10%: Move decimal one place left (10% of 250 = 25.0)
  • Quick 5%: Calculate 10% then halve it
  • Quick 20%: Calculate 10% then double it
  • Reverse Calculation: If 25 is 20% of X, then X = 25 ÷ 0.20 = 125

Common Percentages

1% = 0.01
5% = 0.05
10% = 0.10
15% = 0.15
20% = 0.20
25% = 0.25
50% = 0.50
75% = 0.75
100% = 1.00

How to Use This Advanced Percentage Calculator

Basic Percentage

Calculate what Y% of X is (e.g., what is 15% of 200?)

Increase/Decrease

Find a value after increasing or decreasing by a percentage (e.g., 200 increased by 10%)

Percentage Difference

Calculate the percentage difference between two values (e.g., difference between 150 and 200)

Tips & Tricks

Learn quick calculation methods and common percentage conversions