-31.53% is the change from 812 to 556
Calculation steps:
[( 556 - 812 ) ÷ 812] x 100 = -31.53%
Formula
Percentage change = [(556 - 812) / 812] x 100
Subtract the new number by the original number
556 - 812 = -256
-256 ÷ 812 = -0.31527093596059114
-0.31527093596059114 x 100 = -31.53%