-28.94% is the change from 812 to 577
Calculation steps:
[( 577 - 812 ) ÷ 812] x 100 = -28.94%
Formula
Percentage change = [(577 - 812) / 812] x 100
Subtract the new number by the original number
577 - 812 = -235
-235 ÷ 812 = -0.2894088669950739
-0.2894088669950739 x 100 = -28.94%