-72.22% is the change from 630 to 175
Calculation steps:
[( 175 - 630 ) ÷ 630] x 100 = -72.22%
Formula
Percentage change = [(175 - 630) / 630] x 100
Subtract the new number by the original number
175 - 630 = -455
-455 ÷ 630 = -0.7222222222222222
-0.7222222222222222 x 100 = -72.22%