-91.67% is the change from 120 to 10
Calculation steps:
[( 10 - 120 ) ÷ 120] x 100 = -91.67%
Formula
Percentage change = [(10 - 120) / 120] x 100
Subtract the new number by the original number
10 - 120 = -110
-110 ÷ 120 = -0.9166666666666666
-0.9166666666666666 x 100 = -91.67%