1.71% is the change from 820 to 834
Calculation steps:
[( 834 - 820 ) ÷ 820] x 100 = 1.71%
Formula
Percentage change = [(834 - 820) / 820] x 100
Subtract the new number by the original number
834 - 820 = 14
14 ÷ 820 = 0.01707317073170732
0.01707317073170732 x 100 = 1.71%