3705.56% is the change from 18 to 685
Calculation steps:
[( 685 - 18 ) ÷ 18] x 100 = 3705.56%
Formula
Percentage change = [(685 - 18) / 18] x 100
Subtract the new number by the original number
685 - 18 = 667
667 ÷ 18 = 37.05555555555556
37.05555555555556 x 100 = 3705.56%