-30.64% is the change from 173 to 120
Calculation steps:
[( 120 - 173 ) ÷ 173] x 100 = -30.64%
Formula
Percentage change = [(120 - 173) / 173] x 100
Subtract the new number by the original number
120 - 173 = -53
-53 ÷ 173 = -0.3063583815028902
-0.3063583815028902 x 100 = -30.64%