Percentage Calculator

Compute basic percentages, share ratios, and percentage increases or decreases instantly.

Calculator Controls

1. What is X% of Y?

% of

Result: 0

2. X is what % of Y?

is % of

Result: 0%

3. Percentage Change (From X to Y)

Result: 0%

Percentage Concepts

Understanding Percentage Formulas

Percentages express values as fractions of 100. Understanding how to calculate percentages helps in financial planning, sales analysis, and statistics:

1. Direct Percentage

Finds a portion of a whole number. Used for evaluating tips, commissions, and tax allocations.

(X / 100) × Y

2. Share Ratio

Calculates what percentage a single value represents out of a larger total value.

(X / Y) × 100

3. Percentage Change

Measures growth or reduction rates between an initial value and a final value over time.

((Y - X) / X) × 100