122.37% is the change from 228 to 507
Calculation steps:
[( 507 - 228 ) ÷ 228] x 100 = 122.37%
Formula
Percentage change = [(507 - 228) / 228] x 100
Subtract the new number by the original number
507 - 228 = 279
279 ÷ 228 = 1.2236842105263157
1.2236842105263157 x 100 = 122.37%