-42.69% is the change from 171 to 98
Calculation steps:
[( 98 - 171 ) ÷ 171] x 100 = -42.69%
Formula
Percentage change = [(98 - 171) / 171] x 100
Subtract the new number by the original number
98 - 171 = -73
-73 ÷ 171 = -0.4269005847953216
-0.4269005847953216 x 100 = -42.69%