Calculate percentages, increases, decreases, and more
To find X% of Y, we use the formula:
Result = (X × Y) ÷ 100
For example, to find 15% of 200: (15 × 200) ÷ 100 = 30
To increase a value by X%, we use the formula:
Result = Original Value × (1 + (X ÷ 100))
For example, to increase 100 by 15%: 100 × (1 + (15 ÷ 100)) = 115
To decrease a value by X%, we use the formula:
Result = Original Value × (1 - (X ÷ 100))
For example, to decrease 100 by 15%: 100 × (1 - (15 ÷ 100)) = 85
To find what percentage X is of Y, we use the formula:
Percentage = (X ÷ Y) × 100
For example, to find what percentage 25 is of 200: (25 ÷ 200) × 100 = 12.5%