1722.22% is the change from 18 to 328
Calculation steps:
[( 328 - 18 ) ÷ 18] x 100 = 1722.22%
Formula
Percentage change = [(328 - 18) / 18] x 100
Subtract the new number by the original number
328 - 18 = 310
310 ÷ 18 = 17.22222222222222
17.22222222222222 x 100 = 1722.22%