0.38% is the change from 800 to 803
Calculation steps:
[( 803 - 800 ) ÷ 800] x 100 = 0.38%
Formula
Percentage change = [(803 - 800) / 800] x 100
Subtract the new number by the original number
803 - 800 = 3
3 ÷ 800 = 0.00375
0.00375 x 100 = 0.38%
Example