2.15% is the change from 838 to 856
Calculation steps:
[( 856 - 838 ) ÷ 838] x 100 = 2.15%
Formula
Percentage change = [(856 - 838) / 838] x 100
Subtract the new number by the original number
856 - 838 = 18
18 ÷ 838 = 0.021479713603818614
0.021479713603818614 x 100 = 2.15%