-79.19% is the change from 173 to 36
Calculation steps:
[( 36 - 173 ) ÷ 173] x 100 = -79.19%
Formula
Percentage change = [(36 - 173) / 173] x 100
Subtract the new number by the original number
36 - 173 = -137
-137 ÷ 173 = -0.791907514450867
-0.791907514450867 x 100 = -79.19%