-16.18% is the change from 173 to 145
Calculation steps:
[( 145 - 173 ) ÷ 173] x 100 = -16.18%
Formula
Percentage change = [(145 - 173) / 173] x 100
Subtract the new number by the original number
145 - 173 = -28
-28 ÷ 173 = -0.16184971098265896
-0.16184971098265896 x 100 = -16.18%