Calculate percentages, percentage increases, discounts, and fractions instantly with clear formulas.
10% de 100
10
Variação percentual
20%
The calculator evaluates standard percentage relationships using the fundamental formula: Percentage = (Part / Total) × 100. It also computes percentage increase: ((New - Original) / Original) × 100, and percentage discounts: Original × (1 - Discount / 100). All math is computed client-side with arbitrary decimal precision.
Part = (Base × Rate) / 100 | % Change = ((Final - Initial) / Initial) × 100An account executive closes a $3,200.00 contract with an agreed 15% commission rate.
Interpretation: The executive receives $480.00, leaving $2,720.00 net revenue for the firm.
If an interest rate goes from 10% to 12%, it rose 2 percentage points, but the relative increase is 20% ((12 - 10) / 10).
A 10% increase followed by another 10% increase equals 21% cumulative growth (1.10 × 1.10 = 1.21), not 20%.
Divide the first number (the part) by the second number (the total) and multiply the result by 100. For example, (30 / 120) × 100 = 25%.
Yes, 100% free with unlimited calculations, zero registration, and private in-browser processing.
Subtract the original value from the new value, divide that difference by the original value, and multiply by 100. Example: ((120 - 100) / 100) × 100 = 20% increase.
No. All calculations run strictly inside your local browser memory and are discarded when you leave the page.
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