Rounding is discussed in several threads. This post is one to focus on because it includes information from the designer.
Re: Original bidding rules . . . how do they work?
and note this quote from the post immediately above that one, suggesting how confusion arose.
The first Uberplay ruleset had the rule worded one way, but the example worked the oopposite way.
I see now that the post I linked actually links back itself to 2 other important posts as the source of information from the designer.