2.26% is the change from 840 to 859
Calculation steps:
[( 859 - 840 ) ÷ 840] x 100 = 2.26%
Formula
Percentage change = [(859 - 840) / 840] x 100
Subtract the new number by the original number
859 - 840 = 19
19 ÷ 840 = 0.02261904761904762
0.02261904761904762 x 100 = 2.26%