2527.78% is the change from 18 to 473
Calculation steps:
[( 473 - 18 ) ÷ 18] x 100 = 2527.78%
Formula
Percentage change = [(473 - 18) / 18] x 100
Subtract the new number by the original number
473 - 18 = 455
455 ÷ 18 = 25.27777777777778
25.27777777777778 x 100 = 2527.78%