Is the use of come up to correct in this context?
We bought tons of stuff at X place. The whole bill came up to X dollars.
I often see people (non natives) use come out in this situation:
The whole set up came out to be Y dollars.
Which of these two or both is correct idiomatic usage in this context?
I would use:
The whole bill came up to X dollars.
because on a bill you are adding up indiviual charges that add up to the total amount.
You could also say:
The whole bill amounts/amounted to X dollars.
Usually you would just say "came to X dollars":
come to ( preposition ) to amount to (a sum of money): your bill comes to four pounds (dictionary.reference.com)
Come/came up to is not exactly wrong, but it isn't a commonly use phrase for talking about money in the way that come/came to is.
Both sentences are acceptable, though they have slightly different meanings.
Came up to emphasizes the rising total, which eventually stopped rising when it reached X dollars.
Came out to be expresses initial uncertainty about the bill, followed by the revelation that X dollars was the result.
