2.63% is the change from 799 to 820
Calculation steps:
[( 820 - 799 ) ÷ 799] x 100 = 2.63%
Formula
Percentage change = [(820 - 799) / 799] x 100
Subtract the new number by the original number
820 - 799 = 21
21 ÷ 799 = 0.026282853566958697
0.026282853566958697 x 100 = 2.63%