17.39% is the change from 161 to 189
Calculation steps:
[( 189 - 161 ) ÷ 161] x 100 = 17.39%
Formula
Percentage change = [(189 - 161) / 161] x 100
Subtract the new number by the original number
189 - 161 = 28
28 ÷ 161 = 0.17391304347826086
0.17391304347826086 x 100 = 17.39%