1.42% is the change from 845 to 857
Calculation steps:
[( 857 - 845 ) ÷ 845] x 100 = 1.42%
Formula
Percentage change = [(857 - 845) / 845] x 100
Subtract the new number by the original number
857 - 845 = 12
12 ÷ 845 = 0.014201183431952662
0.014201183431952662 x 100 = 1.42%