2.81% is the change from 819 to 842
Calculation steps:
[( 842 - 819 ) ÷ 819] x 100 = 2.81%
Formula
Percentage change = [(842 - 819) / 819] x 100
Subtract the new number by the original number
842 - 819 = 23
23 ÷ 819 = 0.028083028083028084
0.028083028083028084 x 100 = 2.81%