-72.5% is the change from 629 to 173
Calculation steps:
[( 173 - 629 ) ÷ 629] x 100 = -72.5%
Formula
Percentage change = [(173 - 629) / 629] x 100
Subtract the new number by the original number
173 - 629 = -456
-456 ÷ 629 = -0.724960254372019
-0.724960254372019 x 100 = -72.5%