-74.81% is the change from 675 to 170
Calculation steps:
[( 170 - 675 ) ÷ 675] x 100 = -74.81%
Formula
Percentage change = [(170 - 675) / 675] x 100
Subtract the new number by the original number
170 - 675 = -505
-505 ÷ 675 = -0.7481481481481481
-0.7481481481481481 x 100 = -74.81%