4.85% is the change from 824 to 864
Calculation steps:
[( 864 - 824 ) ÷ 824] x 100 = 4.85%
Formula
Percentage change = [(864 - 824) / 824] x 100
Subtract the new number by the original number
864 - 824 = 40
40 ÷ 824 = 0.04854368932038835
0.04854368932038835 x 100 = 4.85%