2272.22% is the change from 18 to 427
Calculation steps:
[( 427 - 18 ) ÷ 18] x 100 = 2272.22%
Formula
Percentage change = [(427 - 18) / 18] x 100
Subtract the new number by the original number
427 - 18 = 409
409 ÷ 18 = 22.72222222222222
22.72222222222222 x 100 = 2272.22%