Calculate percentages quickly and accurately
Calculate percentages quickly and accurately with our versatile percentage calculator. Whether you need to find a percentage of a number, calculate percentage change, or determine what percent one value is of another, this tool handles it all.
Percentage Value = (Percentage / 100) × Total Value
Example: What is 20% of 150? (20/100) × 150 = 30
Percentage = (Part / Whole) × 100
Example: 25 is what % of 200? (25/200) × 100 = 12.5%
Percentage Change = ((New Value - Old Value) / Old Value) × 100
Example: From 50 to 75: ((75-50)/50) × 100 = 50% increase
10%: Move decimal one place left (10% of 250 = 25)
5%: Take half of 10% (5% of 250 = 12.5)
25%: Divide by 4 (25% of 200 = 50)
50%: Divide by 2 (50% of 180 = 90)
1%: Move decimal two places left (1% of 500 = 5)
Subtract the original value from the new value, divide by the original value, then multiply by 100. A positive result indicates an increase.
Yes, negative percentages represent decreases. The calculator handles both positive and negative values correctly.
Use the percentage change calculator with the original price as the old value and the sale price as the new value.