-29.8% is the change from 812 to 570
Calculation steps:
[( 570 - 812 ) ÷ 812] x 100 = -29.8%
Formula
Percentage change = [(570 - 812) / 812] x 100
Subtract the new number by the original number
570 - 812 = -242
-242 ÷ 812 = -0.29802955665024633
-0.29802955665024633 x 100 = -29.8%