48.25% is the change from 228 to 338
Calculation steps:
[( 338 - 228 ) ÷ 228] x 100 = 48.25%
Formula
Percentage change = [(338 - 228) / 228] x 100
Subtract the new number by the original number
338 - 228 = 110
110 ÷ 228 = 0.4824561403508772
0.4824561403508772 x 100 = 48.25%