Set UnitsellingPrice of an Item based on the percentage of total of sales order

Hi Team,

We have a requirement of setting unit selling price of a particular item on a percentage of the sales order's total. The percentage information has to be picked from Customer's DFF

Can you please provide a sample groovy script for the same, if this is achievable?

Looking at the sample, i did try to create a sample just to assign the Unit selling price of lines in sales order to "30" and the same doesn't work too, apart from this we need to set the price on a percentage on total of sales order

import oracle.apps.scm.doo.common.extensions.ValidationException;