-72.8% is the change from 625 to 170
Calculation steps:
[( 170 - 625 ) ÷ 625] x 100 = -72.8%
Formula
Percentage change = [(170 - 625) / 625] x 100
Subtract the new number by the original number
170 - 625 = -455
-455 ÷ 625 = -0.728
-0.728 x 100 = -72.8%