80.44% is the change from 501 to 904
Calculation steps:
[( 904 - 501 ) ÷ 501] x 100 = 80.44%
Formula
Percentage change = [(904 - 501) / 501] x 100
Subtract the new number by the original number
904 - 501 = 403
403 ÷ 501 = 0.8043912175648703
0.8043912175648703 x 100 = 80.44%