1.42% is the change from 843 to 855
Calculation steps:
[( 855 - 843 ) ÷ 843] x 100 = 1.42%
Formula
Percentage change = [(855 - 843) / 843] x 100
Subtract the new number by the original number
855 - 843 = 12
12 ÷ 843 = 0.014234875444839857
0.014234875444839857 x 100 = 1.42%