-39.96% is the change from 961 to 577
Calculation steps:
[( 577 - 961 ) ÷ 961] x 100 = -39.96%
Formula
Percentage change = [(577 - 961) / 961] x 100
Subtract the new number by the original number
577 - 961 = -384
-384 ÷ 961 = -0.3995837669094693
-0.3995837669094693 x 100 = -39.96%