3183.33% is the change from 18 to 591
Calculation steps:
[( 591 - 18 ) ÷ 18] x 100 = 3183.33%
Formula
Percentage change = [(591 - 18) / 18] x 100
Subtract the new number by the original number
591 - 18 = 573
573 ÷ 18 = 31.833333333333332
31.833333333333332 x 100 = 3183.33%