Percentage Decrease
Calculator

Calculate the percentage decrease between two values instantly and accurately.

100% Free 0 Sign-up needed 📱 Mobile friendly 🔒 No data stored

📉 Percentage Decrease Calculator

Enter original and new value to find the decrease

% Decrease
Decrease Amount

💡 How It Works

Percentage decrease formula explained

Formula
% Decrease = ((Original − New) ÷ Original) × 100
Example: ((100 − 80) ÷ 100) × 100 = 20%
100 → 80-20%
200 → 150-25%
500 → 400-20%
75 → 50-33.33%
90 → 45-50%
📉

Instant Result

Enter two numbers and get the percentage decrease immediately.

Auto Calculate

Results update as you type. No need to press calculate every time.

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100% Private

All calculations run in your browser. Nothing is stored.