-30.21% is the change from 940 to 656
Calculation steps:
[( 656 - 940 ) ÷ 940] x 100 = -30.21%
Formula
Percentage change = [(656 - 940) / 940] x 100
Subtract the new number by the original number
656 - 940 = -284
-284 ÷ 940 = -0.3021276595744681
-0.3021276595744681 x 100 = -30.21%