-30.33% is the change from 577 to 402
Calculation steps:
[( 402 - 577 ) ÷ 577] x 100 = -30.33%
Formula
Percentage change = [(402 - 577) / 577] x 100
Subtract the new number by the original number
402 - 577 = -175
-175 ÷ 577 = -0.30329289428076256
-0.30329289428076256 x 100 = -30.33%