126.57% is the change from 399 to 904
Calculation steps:
[( 904 - 399 ) ÷ 399] x 100 = 126.57%
Formula
Percentage change = [(904 - 399) / 399] x 100
Subtract the new number by the original number
904 - 399 = 505
505 ÷ 399 = 1.2656641604010026
1.2656641604010026 x 100 = 126.57%