-82% is the change from 939 to 169
Calculation steps:
[( 169 - 939 ) ÷ 939] x 100 = -82%
Formula
Percentage change = [(169 - 939) / 939] x 100
Subtract the new number by the original number
169 - 939 = -770
-770 ÷ 939 = -0.820021299254526
-0.820021299254526 x 100 = -82%