2.49% is the change from 842 to 863
Calculation steps:
[( 863 - 842 ) ÷ 842] x 100 = 2.49%
Formula
Percentage change = [(863 - 842) / 842] x 100
Subtract the new number by the original number
863 - 842 = 21
21 ÷ 842 = 0.02494061757719715
0.02494061757719715 x 100 = 2.49%