-58.33% is the change from 120 to 50
Calculation steps:
[( 50 - 120 ) ÷ 120] x 100 = -58.33%
Formula
Percentage change = [(50 - 120) / 120] x 100
Subtract the new number by the original number
50 - 120 = -70
-70 ÷ 120 = -0.5833333333333334
-0.5833333333333334 x 100 = -58.33%