0.99% is the change from 812 to 820
Calculation steps:
[( 820 - 812 ) ÷ 812] x 100 = 0.99%
Formula
Percentage change = [(820 - 812) / 812] x 100
Subtract the new number by the original number
820 - 812 = 8
8 ÷ 812 = 0.009852216748768473
0.009852216748768473 x 100 = 0.99%