2894.44% is the change from 18 to 539
Calculation steps:
[( 539 - 18 ) ÷ 18] x 100 = 2894.44%
Formula
Percentage change = [(539 - 18) / 18] x 100
Subtract the new number by the original number
539 - 18 = 521
521 ÷ 18 = 28.944444444444443
28.944444444444443 x 100 = 2894.44%