Calculate percentage increase or decrease between two numbers.
This calculator allows you to find the percentage increase or decrease between two numbers instantly. Enter the original value and the new value, and the calculator computes the absolute difference, percentage change, and whether it is an increase or decrease.
Provide the numbers to calculate percentage change:
The calculator updates results automatically as you type.
The calculator performs the following calculations:
Step-by-step formulas are displayed to help you understand the calculation.
The calculator ensures reliable and safe results:
This ensures beginner-friendly and accurate calculations.
Results are displayed clearly and instantly:
1. Enter the Original Value (O) and the New Value (N).
2. The calculator computes the difference:
Difference = N − O
3. Calculates the percentage change:
Percentage Change = ((N − O) ÷ O) × 100
4. Determines whether it is an Increase or Decrease.
5. Displays the results instantly along with step-by-step formulas.
6. Shows an error if inputs are missing or invalid.
This allows users to quickly understand how much a value has increased or decreased in percentage terms.
Suppose the original value is 150 and the new value is 120:
Difference: 120 − 150 = −30
Percentage Change: ((120 − 150) ÷ 150) × 100 = −20% (Decrease)
The calculator instantly shows the difference, the percentage change, and indicates it is a decrease. You can change the numbers to see updated results immediately.
Everything you need to know about calculating percentage increase or decrease between two numbers.
This calculator computes the percentage change between an original value and a new value, showing whether it is an increase or decrease and the exact percentage.
Yes, it is completely free to use, with no registration, ads, or hidden charges.
You need to enter the original value and the new value. The calculator will automatically determine the percentage change and indicate if it is an increase or decrease.
The formula used is: (New − Original) ÷ Original × 100. A positive result indicates a percentage increase, while a negative result indicates a percentage decrease.
The original value must not be zero. Negative numbers are allowed for both original and new values, but the calculator will handle them according to the standard percentage change formula.
If the inputs are missing, non-numeric, or the original value is zero, the calculator will display an error message and no result will be shown.
Yes. Use the “Clear All” button to reset input fields or the “Reload Calculator” button to reload the page completely.
Yes. Click the “Copy” button in the result box to copy the calculated percentage change to your clipboard.
Yes, the calculator is fully responsive and works smoothly on smartphones, tablets, laptops, and desktops.
Students, teachers, finance professionals, and anyone needing to calculate percentage increases or decreases can use this tool for homework, budgeting, or quick financial calculations.
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