-84.56% is the change from 939 to 145
Calculation steps:
[( 145 - 939 ) ÷ 939] x 100 = -84.56%
Formula
Percentage change = [(145 - 939) / 939] x 100
Subtract the new number by the original number
145 - 939 = -794
-794 ÷ 939 = -0.845580404685836
-0.845580404685836 x 100 = -84.56%