2388.89% is the change from 18 to 448
Calculation steps:
[( 448 - 18 ) ÷ 18] x 100 = 2388.89%
Formula
Percentage change = [(448 - 18) / 18] x 100
Subtract the new number by the original number
448 - 18 = 430
430 ÷ 18 = 23.88888888888889
23.88888888888889 x 100 = 2388.89%