1494.44% is the change from 18 to 287
Calculation steps:
[( 287 - 18 ) ÷ 18] x 100 = 1494.44%
Formula
Percentage change = [(287 - 18) / 18] x 100
Subtract the new number by the original number
287 - 18 = 269
269 ÷ 18 = 14.944444444444445
14.944444444444445 x 100 = 1494.44%