Tax question - when using avatax sales tax was accidentally charged on an item that should have been nontaxable. How do I refund JUST the sales tax portion? I;m having issues getting it to show just the sales tax as it is based off of a percentage of the line item, but I do not want to refund the full line item, only the sales tax portion. I feel like I'm stuck in a taxloop because it is based off of % rather than a normal dollar amount