3.31% is the change from 816 to 843
Calculation steps:
[( 843 - 816 ) ÷ 816] x 100 = 3.31%
Formula
Percentage change = [(843 - 816) / 816] x 100
Subtract the new number by the original number
843 - 816 = 27
27 ÷ 816 = 0.03308823529411765
0.03308823529411765 x 100 = 3.31%