-23.31% is the change from 815 to 625
Calculation steps:
[( 625 - 815 ) ÷ 815] x 100 = -23.31%
Formula
Percentage change = [(625 - 815) / 815] x 100
Subtract the new number by the original number
625 - 815 = -190
-190 ÷ 815 = -0.2331288343558282
-0.2331288343558282 x 100 = -23.31%