27.11% is the change from 166 to 211
Calculation steps:
[( 211 - 166 ) ÷ 166] x 100 = 27.11%
Formula
Percentage change = [(211 - 166) / 166] x 100
Subtract the new number by the original number
211 - 166 = 45
45 ÷ 166 = 0.2710843373493976
0.2710843373493976 x 100 = 27.11%