-31.63% is the change from 961 to 657
Calculation steps:
[( 657 - 961 ) ÷ 961] x 100 = -31.63%
Formula
Percentage change = [(657 - 961) / 961] x 100
Subtract the new number by the original number
657 - 961 = -304
-304 ÷ 961 = -0.31633714880332986
-0.31633714880332986 x 100 = -31.63%