5.63% is the change from 800 to 845
Calculation steps:
[( 845 - 800 ) ÷ 800] x 100 = 5.63%
Formula
Percentage change = [(845 - 800) / 800] x 100
Subtract the new number by the original number
845 - 800 = 45
45 ÷ 800 = 0.05625
0.05625 x 100 = 5.63%
Example