-35.54% is the change from 166 to 107
Calculation steps:
[( 107 - 166 ) ÷ 166] x 100 = -35.54%
Formula
Percentage change = [(107 - 166) / 166] x 100
Subtract the new number by the original number
107 - 166 = -59
-59 ÷ 166 = -0.35542168674698793
-0.35542168674698793 x 100 = -35.54%