42.17% is the change from 166 to 236
Calculation steps:
[( 236 - 166 ) ÷ 166] x 100 = 42.17%
Formula
Percentage change = [(236 - 166) / 166] x 100
Subtract the new number by the original number
236 - 166 = 70
70 ÷ 166 = 0.42168674698795183
0.42168674698795183 x 100 = 42.17%