Yeah, that's another way to do it. Another way to look at that is you're doing the proration on the final amount, and then distributing the rounding difference

Yeah, that's another way to do it. Another way to look at that is you're doing the proration on the final amount, and then distributing the rounding difference across the line items. Which is nice because you get the right total, though it can look weird when line items for the exact same thing are off by a penny from each other.