2422.22% is the change from 18 to 454
Calculation steps:
[( 454 - 18 ) ÷ 18] x 100 = 2422.22%
Formula
Percentage change = [(454 - 18) / 18] x 100
Subtract the new number by the original number
454 - 18 = 436
436 ÷ 18 = 24.22222222222222
24.22222222222222 x 100 = 2422.22%