-10.01% is the change from 939 to 845
Calculation steps:
[( 845 - 939 ) ÷ 939] x 100 = -10.01%
Formula
Percentage change = [(845 - 939) / 939] x 100
Subtract the new number by the original number
845 - 939 = -94
-94 ÷ 939 = -0.10010649627263046
-0.10010649627263046 x 100 = -10.01%