-81.6% is the change from 625 to 115
Calculation steps:
[( 115 - 625 ) ÷ 625] x 100 = -81.6%
Formula
Percentage change = [(115 - 625) / 625] x 100
Subtract the new number by the original number
115 - 625 = -510
-510 ÷ 625 = -0.816
-0.816 x 100 = -81.6%