-31.4% is the change from 812 to 557
Calculation steps:
[( 557 - 812 ) ÷ 812] x 100 = -31.4%
Formula
Percentage change = [(557 - 812) / 812] x 100
Subtract the new number by the original number
557 - 812 = -255
-255 ÷ 812 = -0.31403940886699505
-0.31403940886699505 x 100 = -31.4%