-39.64% is the change from 956 to 577
Calculation steps:
[( 577 - 956 ) ÷ 956] x 100 = -39.64%
Formula
Percentage change = [(577 - 956) / 956] x 100
Subtract the new number by the original number
577 - 956 = -379
-379 ÷ 956 = -0.39644351464435146
-0.39644351464435146 x 100 = -39.64%