-23.4% is the change from 812 to 622
Calculation steps:
[( 622 - 812 ) ÷ 812] x 100 = -23.4%
Formula
Percentage change = [(622 - 812) / 812] x 100
Subtract the new number by the original number
622 - 812 = -190
-190 ÷ 812 = -0.23399014778325122
-0.23399014778325122 x 100 = -23.4%