Chapter 2 - Solving Equations - 2-10 Change Expressed as a Percent - Practice and Problem-Solving Exercises - Page 149: 29

39%

Step 1) 234.56 - 168.54 = 66.02 Step 2) 66.02 ÷ 168.54 = .39 Step 3) .39 x 100 = 39% --- To find percent change, subtract the two figures and divide the difference by the starting figure. Get a decimal answer and convert to a percentage by multiplying by 100.