Frequently Asked Questions
How do I calculate a percentage of a value?
To calculate a percentage of a value, multiply the value by the percentage divided by 100. For example, to find 15% of 200, calculate: 200 × (15 ÷ 100) = 200 × 0.15 = 30.
How do I calculate percentage increase or decrease?
To calculate percentage change, use the formula: ((New Value - Old Value) ÷ Old Value) × 100. A positive result indicates an increase, while a negative result indicates a decrease.
How do I convert a percentage to a decimal?
To convert a percentage to a decimal, divide the percentage by 100. For example, 75% = 75 ÷ 100 = 0.75.
How do I convert a decimal to a percentage?
To convert a decimal to a percentage, multiply the decimal by 100. For example, 0.35 = 0.35 × 100 = 35%.
What's the difference between percentage points and percentages?
Percentage points represent an absolute difference between two percentages, while percentage change is a relative change. For example, if a value increases from 10% to 15%, that's an increase of 5 percentage points, but a 50% increase in relative terms (since 5 is 50% of 10).