Percentage = (Part ÷ Whole) × 100
Convert a fraction to a percentage: (Numerator ÷ Denominator) × 100
Convert a decimal to a percentage: Decimal × 100
Find the percentage of a number: (Percentage ÷ 100) × Number
Find what percent one number is of another: (First Number ÷ Second Number) × 100
Increase by a percentage: Original Number × (1 + Percentage ÷ 100)
Decrease by a percentage: Original Number × (1 – Percentage ÷ 100)