123.21% is the change from 405 to 904
Calculation steps:
[( 904 - 405 ) ÷ 405] x 100 = 123.21%
Formula
Percentage change = [(904 - 405) / 405] x 100
Subtract the new number by the original number
904 - 405 = 499
499 ÷ 405 = 1.2320987654320987
1.2320987654320987 x 100 = 123.21%