39.76% is the change from 166 to 232
Calculation steps:
[( 232 - 166 ) ÷ 166] x 100 = 39.76%
Formula
Percentage change = [(232 - 166) / 166] x 100
Subtract the new number by the original number
232 - 166 = 66
66 ÷ 166 = 0.39759036144578314
0.39759036144578314 x 100 = 39.76%