Identify the total value
Identify the part value
Divide the part by the total
Multiply the result by 100
Formula: (Part ÷ Total) × 100
Example: (25 ÷ 200) × 100 = 12.5%
To find a part from a percentage: (Percentage ÷ 100) × Total
Example: (15 ÷ 100) × 80 = 12
To find the total from a part and percentage: Part ÷ (Percentage ÷ 100)
Example: 20 ÷ 0.25 = 80