2.43% is the change from 822 to 842
Calculation steps:
[( 842 - 822 ) ÷ 822] x 100 = 2.43%
Formula
Percentage change = [(842 - 822) / 822] x 100
Subtract the new number by the original number
842 - 822 = 20
20 ÷ 822 = 0.024330900243309004
0.024330900243309004 x 100 = 2.43%