-91.38% is the change from 174 to 15
Calculation steps:
[( 15 - 174 ) ÷ 174] x 100 = -91.38%
Formula
Percentage change = [(15 - 174) / 174] x 100
Subtract the new number by the original number
15 - 174 = -159
-159 ÷ 174 = -0.9137931034482759
-0.9137931034482759 x 100 = -91.38%