Percentage Increase Calculator
Compute increase/decrease between two values, and reverse (find initial from final + %).
Input Data
Initial
Final
Results
Final − initial.
20
Percentage change.
20%
Initial recovered from final and %.
100
At a glance:% = (final−initial)/initial×100; reverse: initial = final/(1+pct/100). Complements percentage-change and percent-change.
Formula
% = (final−initial)/initial × 100.
initial = final / (1 + pct/100).
How to Use
- Enter initial and final (or final and % for reverse).
- The tool returns the change and reverse.
Case Studies
80 → 100
+20; +25%.
FAQ
Reverse use case?
Find the pre-sale price from the discounted price and discount %.
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References
Content review: Calculatorism Science Team. Results are for reference only; please refer to the relevant authorities for the official figures.