15.47% is the change from 181 to 209
Calculation steps:
[( 209 - 181 ) ÷ 181] x 100 = 15.47%
Formula
Percentage change = [(209 - 181) / 181] x 100
Subtract the new number by the original number
209 - 181 = 28
28 ÷ 181 = 0.15469613259668508
0.15469613259668508 x 100 = 15.47%