-57.76% is the change from 947 to 400
Calculation steps:
[( 400 - 947 ) ÷ 947] x 100 = -57.76%
Formula
Percentage change = [(400 - 947) / 947] x 100
Subtract the new number by the original number
400 - 947 = -547
-547 ÷ 947 = -0.5776135163674763
-0.5776135163674763 x 100 = -57.76%