0.24% is the change from 818 to 820
Calculation steps:
[( 820 - 818 ) ÷ 818] x 100 = 0.24%
Formula
Percentage change = [(820 - 818) / 818] x 100
Subtract the new number by the original number
820 - 818 = 2
2 ÷ 818 = 0.0024449877750611247
0.0024449877750611247 x 100 = 0.24%