-39.75% is the change from 961 to 579
Calculation steps:
[( 579 - 961 ) ÷ 961] x 100 = -39.75%
Formula
Percentage change = [(579 - 961) / 961] x 100
Subtract the new number by the original number
579 - 961 = -382
-382 ÷ 961 = -0.3975026014568158
-0.3975026014568158 x 100 = -39.75%