We are getting 1 cent errors when an order has multiple items, each with fractional quantities. For example,
1.25 lbs @ $9.99 = $12.4875, rounded to $12.49
1.32 lbs @ $11.99 = $15.8268, rounded to $15.83
When the two items are totaled, the unrounded amounts are added together, for $28.3143, rounded to $28.31, but the total of 12.49 and 15.83 is $28.32.
It would be better if the line item extended amounts were rounded as appropriate for the selected currency (e.g. $0.01 for US dollar), and then rounded extended amounts were added to calculate order total, rather than adding the unrounded individual amounts and rounding the total.