% increase or % decrease

CONCEPTS

% Increase / Decrease Equation

• % increase or decrease = (New – original) / original * 100%

PRACTICE PROBLEMS

Question 1 A person weighed 120 lbs at 20 years old. At 30 years old, the person weighed 132 lbs. What is the % increase?

-- Answer -- 10% increase

% increase = (132 – 120) / 120 * 100% = 12/120 * 100% = 10%

ACT PRACTICE PROBLEMS