0.8% is the change from 500 to 504
Calculation steps:
[( 504 - 500 ) ÷ 500] x 100 = 0.8%
Formula
Percentage change = [(504 - 500) / 500] x 100
Subtract the new number by the original number
504 - 500 = 4
4 ÷ 500 = 0.008
0.008 x 100 = 0.8%
Example