4.06% is the change from 788 to 820
Calculation steps:
[( 820 - 788 ) ÷ 788] x 100 = 4.06%
Formula
Percentage change = [(820 - 788) / 788] x 100
Subtract the new number by the original number
820 - 788 = 32
32 ÷ 788 = 0.04060913705583756
0.04060913705583756 x 100 = 4.06%