-11.4% is the change from 947 to 839
Calculation steps:
[( 839 - 947 ) ÷ 947] x 100 = -11.4%
Formula
Percentage change = [(839 - 947) / 947] x 100
Subtract the new number by the original number
839 - 947 = -108
-108 ÷ 947 = -0.11404435058078141
-0.11404435058078141 x 100 = -11.4%