2133.33% is the change from 18 to 402
Calculation steps:
[( 402 - 18 ) ÷ 18] x 100 = 2133.33%
Formula
Percentage change = [(402 - 18) / 18] x 100
Subtract the new number by the original number
402 - 18 = 384
384 ÷ 18 = 21.333333333333332
21.333333333333332 x 100 = 2133.33%