29.81% is the change from 161 to 209
Calculation steps:
[( 209 - 161 ) ÷ 161] x 100 = 29.81%
Formula
Percentage change = [(209 - 161) / 161] x 100
Subtract the new number by the original number
209 - 161 = 48
48 ÷ 161 = 0.2981366459627329
0.2981366459627329 x 100 = 29.81%