A friend of mine has told me that at work he helps his father by calculating profits and debts of his father's company in a week basis.
But when he told me that, he didn't use the same words I did, he said:
"At work, I help my father by closing the week for him."
Is the expression "close the week" acceptable for this context.
It is a technical term used by accountants. In pre-computer days it involved producing a statement of profit and loss and a balance sheet. Nowadays, it is more used to mean completing all the accounting entries for a fiscal period, whether that be a week, a month, a year or whatever. Most accountants now use it to mean that, once a fiscal period has been closed, no further entries are allowed in that period.