-89.44% is the change from 161 to 17
Calculation steps:
[( 17 - 161 ) ÷ 161] x 100 = -89.44%
Formula
Percentage change = [(17 - 161) / 161] x 100
Subtract the new number by the original number
17 - 161 = -144
-144 ÷ 161 = -0.8944099378881988
-0.8944099378881988 x 100 = -89.44%