-8.76% is the change from 947 to 864
Calculation steps:
[( 864 - 947 ) ÷ 947] x 100 = -8.76%
Formula
Percentage change = [(864 - 947) / 947] x 100
Subtract the new number by the original number
864 - 947 = -83
-83 ÷ 947 = -0.08764519535374868
-0.08764519535374868 x 100 = -8.76%