27.71% is the change from 166 to 212
Calculation steps:
[( 212 - 166 ) ÷ 166] x 100 = 27.71%
Formula
Percentage change = [(212 - 166) / 166] x 100
Subtract the new number by the original number
212 - 166 = 46
46 ÷ 166 = 0.27710843373493976
0.27710843373493976 x 100 = 27.71%