2988.89% is the change from 18 to 556
Calculation steps:
[( 556 - 18 ) ÷ 18] x 100 = 2988.89%
Formula
Percentage change = [(556 - 18) / 18] x 100
Subtract the new number by the original number
556 - 18 = 538
538 ÷ 18 = 29.88888888888889
29.88888888888889 x 100 = 2988.89%