124% is the change from 225 to 504
Calculation steps:
[( 504 - 225 ) ÷ 225] x 100 = 124%
Formula
Percentage change = [(504 - 225) / 225] x 100
Subtract the new number by the original number
504 - 225 = 279
279 ÷ 225 = 1.24
1.24 x 100 = 124%
Example