2.61% is the change from 842 to 864
Calculation steps:
[( 864 - 842 ) ÷ 842] x 100 = 2.61%
Formula
Percentage change = [(864 - 842) / 842] x 100
Subtract the new number by the original number
864 - 842 = 22
22 ÷ 842 = 0.026128266033254157
0.026128266033254157 x 100 = 2.61%