-43.93% is the change from 173 to 97
Calculation steps:
[( 97 - 173 ) ÷ 173] x 100 = -43.93%
Formula
Percentage change = [(97 - 173) / 173] x 100
Subtract the new number by the original number
97 - 173 = -76
-76 ÷ 173 = -0.4393063583815029
-0.4393063583815029 x 100 = -43.93%