-33.73% is the change from 166 to 110
Calculation steps:
[( 110 - 166 ) ÷ 166] x 100 = -33.73%
Formula
Percentage change = [(110 - 166) / 166] x 100
Subtract the new number by the original number
110 - 166 = -56
-56 ÷ 166 = -0.3373493975903614
-0.3373493975903614 x 100 = -33.73%