-83.81% is the change from 939 to 152
Calculation steps:
[( 152 - 939 ) ÷ 939] x 100 = -83.81%
Formula
Percentage change = [(152 - 939) / 939] x 100
Subtract the new number by the original number
152 - 939 = -787
-787 ÷ 939 = -0.838125665601704
-0.838125665601704 x 100 = -83.81%