5.07% is the change from 217 to 228
Calculation steps:
[( 228 - 217 ) ÷ 217] x 100 = 5.07%
Formula
Percentage change = [(228 - 217) / 217] x 100
Subtract the new number by the original number
228 - 217 = 11
11 ÷ 217 = 0.05069124423963134
0.05069124423963134 x 100 = 5.07%