Question

In six months the membership at a fitness center went from 3,500 to 4,200. what was the percent of increase in the membership?

Answer 1

It is definitely C: 20%

Subtract the original value from the new value, then divide the result by the original value then multiply the result by 100 and it will give you the answer

$\frac{4200 - 3500}{3500} \times 100$
$\frac{700}{3500} \times 100$
$0.2 \times 100 = 20\%$