3.34% is the change from 809 to 836
Calculation steps:
[( 836 - 809 ) ÷ 809] x 100 = 3.34%
Formula
Percentage change = [(836 - 809) / 809] x 100
Subtract the new number by the original number
836 - 809 = 27
27 ÷ 809 = 0.03337453646477132
0.03337453646477132 x 100 = 3.34%