121.05% is the change from 228 to 504
Calculation steps:
[( 504 - 228 ) ÷ 228] x 100 = 121.05%
Formula
Percentage change = [(504 - 228) / 228] x 100
Subtract the new number by the original number
504 - 228 = 276
276 ÷ 228 = 1.2105263157894737
1.2105263157894737 x 100 = 121.05%