-87.22% is the change from 939 to 120
Calculation steps:
[( 120 - 939 ) ÷ 939] x 100 = -87.22%
Formula
Percentage change = [(120 - 939) / 939] x 100
Subtract the new number by the original number
120 - 939 = -819
-819 ÷ 939 = -0.8722044728434505
-0.8722044728434505 x 100 = -87.22%