1.48% is the change from 809 to 821
Calculation steps:
[( 821 - 809 ) ÷ 809] x 100 = 1.48%
Formula
Percentage change = [(821 - 809) / 809] x 100
Subtract the new number by the original number
821 - 809 = 12
12 ÷ 809 = 0.014833127317676144
0.014833127317676144 x 100 = 1.48%