-9.4% is the change from 947 to 858
Calculation steps:
[( 858 - 947 ) ÷ 947] x 100 = -9.4%
Formula
Percentage change = [(858 - 947) / 947] x 100
Subtract the new number by the original number
858 - 947 = -89
-89 ÷ 947 = -0.09398099260823653
-0.09398099260823653 x 100 = -9.4%