1488.89% is the change from 18 to 286
Calculation steps:
[( 286 - 18 ) ÷ 18] x 100 = 1488.89%
Formula
Percentage change = [(286 - 18) / 18] x 100
Subtract the new number by the original number
286 - 18 = 268
268 ÷ 18 = 14.88888888888889
14.88888888888889 x 100 = 1488.89%