4655.56% is the change from 18 to 856
Calculation steps:
[( 856 - 18 ) ÷ 18] x 100 = 4655.56%
Formula
Percentage change = [(856 - 18) / 18] x 100
Subtract the new number by the original number
856 - 18 = 838
838 ÷ 18 = 46.55555555555556
46.55555555555556 x 100 = 4655.56%