# What is the percent change if the original number is 66 and the new number is 30?

Oct 22, 2016

$- 54.55$ (r.o to 2 decimal places)

#### Explanation:

Formula for percentage change =
(new number - original number)$/$original number $\times 100$

$= \frac{30 - 66}{66} \times 100$

=-54.55% (r.o to 2 decimal places)