Some customers have noticed that their totals are a penny off. I don't charge tax (digital goods). I believe the problem happens when the item is on sale (all my items are discounted 5%), and although it is rounded off for the published customer price, the full, say, four decimal points are used when totalling. And occasionally when several products are ordered, that will make the total a penny higher.
For instance, an item at 5% off is $14.2025. The published price on the store is $14.20. The next product discounts to $15.1525. The customer sees $15.15. But the store totals the full 4 decimal places (unseen to the customer), and their total is $29.36. But from what the customer can see, it should be $29.35.
I am wondering if I should change the number in Admin --> Currencies --> US Dollar to have only 2 decimal places. Would that hurt anything? Would that solve my problem?
I am running 1.3.9h.
Thanks in advance for your help!