-75.2% is the change from 625 to 155
Calculation steps:
[( 155 - 625 ) ÷ 625] x 100 = -75.2%
Formula
Percentage change = [(155 - 625) / 625] x 100
Subtract the new number by the original number
155 - 625 = -470
-470 ÷ 625 = -0.752
-0.752 x 100 = -75.2%