-29.46% is the change from 818 to 577
Calculation steps:
[( 577 - 818 ) ÷ 818] x 100 = -29.46%
Formula
Percentage change = [(577 - 818) / 818] x 100
Subtract the new number by the original number
577 - 818 = -241
-241 ÷ 818 = -0.2946210268948655
-0.2946210268948655 x 100 = -29.46%