Percentage Increase Calculator
Calculate percentage increase or percentage decrease easily. Input original and new values to get instant differences, percentage changes, step-by-step mathematical formulas, and safe error handling without NaN errors.
Difference: +50 from original value (100 → 150)
Formula: ((New Value - Original Value) / |Original Value|) × 100
Step 1 (Difference): 150 - 100 = 50
Step 2 (Percentage): (50 / 100) × 100 = 50%
How to Use Percentage Increase Calculator
- 1Enter the Original Value in the first field.
- 2Enter the New Value in the second field.
- 3Instantly see the percentage change, numeric difference, and growth direction.
- 4Review the step-by-step formula for reference or assignments.
Key Features
- Calculates exact numeric difference and percentage change
- Identifies whether the change is an increase or decrease
- Safe handling for zero, negative values, and empty inputs
- Shows mathematical formula and step-by-step breakdown
- One-click reset and result copying
Example Usage
Original Value: 50, New Value: 75
+50% Increase (Difference: +25)
Note: Formula: ((75 - 50) / 50) * 100 = 50% increase.
Frequently Asked Questions
How is percentage increase calculated?▼
Percentage change formula is: ((New Value - Original Value) / Original Value) * 100.
What happens if the original value is zero?▼
If the original value is 0 and the new value is positive, the change is theoretically infinite. The calculator shows a clear explanatory message instead of crashing with NaN.
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