Percentage Calculator
Solve percentage problems, calculate percentage increase/decrease, and find values effortlessly.
Solution: (15 / 100) × 240 = 36
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About the Percentage Calculator
Percentages are a fundamental mathematical concept used everywhere: from shopping discounts and exam scores to financial growth and tax rates. This multi-mode Percentage Calculator solves all percentage equations instantly.
How to Use the Percentage Calculator
- 1Select the calculation mode you need from the 3 available tabs.
- 2Enter the numeric values into the corresponding input boxes.
- 3Get real-time answers with instant step-by-step solution formulas.
How It Works & Underlying Logic
Percentages express a ratio as a fraction of 100. The tool evaluates the algebraic formula according to the chosen mode: basic percent (P = (X / 100) * Y), proportion (P = (X / Y) * 100), or percentage change (Δ = ((New - Old) / Old) * 100).
Percent of Value: P = (Rate / 100) × Base | Percentage Change: ((V2 - V1) / |V1|) × 100Practical Calculation Examples
Calculate 15% of $240
Finding the tip or tax amount on a purchase
Percentage Increase
A stock price rising from $50 to $75
Helpful Tips & Best Practices
- •To quickly calculate 10% in your head, simply move the decimal point one place to the left.
- •A negative percentage change indicates a decrease or markdown.
Percentage Calculator FAQ
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