Answer:
5%
Explanation:
We will apply weight loss formula here:
Divide weight loss by starting weight. Then, multiply the resulting value by 100. You will get decrease in weight as a percent.
About this question:
135 pounds = starting weight
135 pounds - 128 pounds = 7 pounds (i.e. weight loss)
Now, according to formula:
7 ÷ 135 = 0.05
0.05 × 100 = 5%