Percentage Increase Calculator
Calculate percentage increase, decrease, or percent change between two numbers. Perfect for salary raises, price changes, and growth rates.
What Is Percentage Increase and How to Calculate It?
Percentage increase measures how much a value has grown relative to its original amount. The formula is: [(New Value - Original Value) ÷ Original Value] × 100. If your salary increased from $50,000 to $55,000, the increase is $5,000 ÷ $50,000 × 100 = 10% increase.
Percentage Increase Formula
Formula: Percentage Increase = [(New Value - Original Value) ÷ Original Value] × 100
Example - Salary Increase: $60,000 to $66,000 = ($6,000 ÷ $60,000) × 100 = 10% raise.
Example - Price Increase: $25 to $30 = ($5 ÷ $25) × 100 = 20% increase.
Percentage Decrease Formula
Formula: Percentage Decrease = [(Original Value - New Value) ÷ Original Value] × 100
Example - Discount: $100 to $80 = ($20 ÷ $100) × 100 = 20% off.
Percent Change Formula
Formula: Percent Change = [(New Value - Original Value) ÷ |Original Value|] × 100
Positive result means increase, negative means decrease.
Find New Value After Percentage Change
Formula: New Value = Original Value × (1 + Percentage ÷ 100)
Example: $200 with 15% increase = $200 × 1.15 = $230
For decrease: New Value = Original Value × (1 - Percentage ÷ 100)
Frequently Asked Questions
Q: How do I calculate percentage increase?
A: Subtract original from new, divide by original, multiply by 100.
Q: Can percentage increase be more than 100%?
A: Yes. Doubling = 100% increase, tripling = 200% increase.
Q: How to calculate salary increase percentage?
A: (New Salary - Old Salary) ÷ Old Salary × 100.
Try the calculator above. Enter your numbers. Get instant results.