-89.88% is the change from 168 to 17
Calculation steps:
[( 17 - 168 ) ÷ 168] x 100 = -89.88%
Formula
Percentage change = [(17 - 168) / 168] x 100
Subtract the new number by the original number
17 - 168 = -151
-151 ÷ 168 = -0.8988095238095238
-0.8988095238095238 x 100 = -89.88%