0.23% is the change from 857 to 859
Calculation steps:
[( 859 - 857 ) ÷ 857] x 100 = 0.23%
Formula
Percentage change = [(859 - 857) / 857] x 100
Subtract the new number by the original number
859 - 857 = 2
2 ÷ 857 = 0.002333722287047841
0.002333722287047841 x 100 = 0.23%