2.27% is the change from 838 to 857
Calculation steps:
[( 857 - 838 ) ÷ 838] x 100 = 2.27%
Formula
Percentage change = [(857 - 838) / 838] x 100
Subtract the new number by the original number
857 - 838 = 19
19 ÷ 838 = 0.022673031026252982
0.022673031026252982 x 100 = 2.27%