13% is the change from 800 to 904
Calculation steps:
[( 904 - 800 ) ÷ 800] x 100 = 13%
Formula
Percentage change = [(904 - 800) / 800] x 100
Subtract the new number by the original number
904 - 800 = 104
104 ÷ 800 = 0.13
0.13 x 100 = 13%
Example