20.63% is the change from 189 to 228
Calculation steps:
[( 228 - 189 ) ÷ 189] x 100 = 20.63%
Formula
Percentage change = [(228 - 189) / 189] x 100
Subtract the new number by the original number
228 - 189 = 39
39 ÷ 189 = 0.20634920634920634
0.20634920634920634 x 100 = 20.63%