-10.86% is the change from 939 to 837
Calculation steps:
[( 837 - 939 ) ÷ 939] x 100 = -10.86%
Formula
Percentage change = [(837 - 939) / 939] x 100
Subtract the new number by the original number
837 - 939 = -102
-102 ÷ 939 = -0.10862619808306709
-0.10862619808306709 x 100 = -10.86%