9.88% is the change from 172 to 189
Calculation steps:
[( 189 - 172 ) ÷ 172] x 100 = 9.88%
Formula
Percentage change = [(189 - 172) / 172] x 100
Subtract the new number by the original number
189 - 172 = 17
17 ÷ 172 = 0.09883720930232558
0.09883720930232558 x 100 = 9.88%