-15.39% is the change from 812 to 687
Calculation steps:
[( 687 - 812 ) ÷ 812] x 100 = -15.39%
Formula
Percentage change = [(687 - 812) / 812] x 100
Subtract the new number by the original number
687 - 812 = -125
-125 ÷ 812 = -0.1539408866995074
-0.1539408866995074 x 100 = -15.39%