-29.68% is the change from 812 to 571
Calculation steps:
[( 571 - 812 ) ÷ 812] x 100 = -29.68%
Formula
Percentage change = [(571 - 812) / 812] x 100
Subtract the new number by the original number
571 - 812 = -241
-241 ÷ 812 = -0.29679802955665024
-0.29679802955665024 x 100 = -29.68%