71.69% is the change from 166 to 285
Calculation steps:
[( 285 - 166 ) ÷ 166] x 100 = 71.69%
Formula
Percentage change = [(285 - 166) / 166] x 100
Subtract the new number by the original number
285 - 166 = 119
119 ÷ 166 = 0.7168674698795181
0.7168674698795181 x 100 = 71.69%