1444.44% is the change from 18 to 278
Calculation steps:
[( 278 - 18 ) ÷ 18] x 100 = 1444.44%
Formula
Percentage change = [(278 - 18) / 18] x 100
Subtract the new number by the original number
278 - 18 = 260
260 ÷ 18 = 14.444444444444445
14.444444444444445 x 100 = 1444.44%