-39.07% is the change from 947 to 577
Calculation steps:
[( 577 - 947 ) ÷ 947] x 100 = -39.07%
Formula
Percentage change = [(577 - 947) / 947] x 100
Subtract the new number by the original number
577 - 947 = -370
-370 ÷ 947 = -0.3907074973600845
-0.3907074973600845 x 100 = -39.07%