4.63% is the change from 820 to 858
Calculation steps:
[( 858 - 820 ) ÷ 820] x 100 = 4.63%
Formula
Percentage change = [(858 - 820) / 820] x 100
Subtract the new number by the original number
858 - 820 = 38
38 ÷ 820 = 0.046341463414634146
0.046341463414634146 x 100 = 4.63%