1238.89% is the change from 18 to 241
Calculation steps:
[( 241 - 18 ) ÷ 18] x 100 = 1238.89%
Formula
Percentage change = [(241 - 18) / 18] x 100
Subtract the new number by the original number
241 - 18 = 223
223 ÷ 18 = 12.38888888888889
12.38888888888889 x 100 = 1238.89%