2% is the change from 800 to 816
Calculation steps:
[( 816 - 800 ) ÷ 800] x 100 = 2%
Formula
Percentage change = [(816 - 800) / 800] x 100
Subtract the new number by the original number
816 - 800 = 16
16 ÷ 800 = 0.02
0.02 x 100 = 2%
Example