-30.73% is the change from 947 to 656
Calculation steps:
[( 656 - 947 ) ÷ 947] x 100 = -30.73%
Formula
Percentage change = [(656 - 947) / 947] x 100
Subtract the new number by the original number
656 - 947 = -291
-291 ÷ 947 = -0.307286166842661
-0.307286166842661 x 100 = -30.73%