128.07% is the change from 228 to 520
Calculation steps:
[( 520 - 228 ) ÷ 228] x 100 = 128.07%
Formula
Percentage change = [(520 - 228) / 228] x 100
Subtract the new number by the original number
520 - 228 = 292
292 ÷ 228 = 1.280701754385965
1.280701754385965 x 100 = 128.07%