5.37% is the change from 820 to 864
Calculation steps:
[( 864 - 820 ) ÷ 820] x 100 = 5.37%
Formula
Percentage change = [(864 - 820) / 820] x 100
Subtract the new number by the original number
864 - 820 = 44
44 ÷ 820 = 0.05365853658536585
0.05365853658536585 x 100 = 5.37%