crédit here means "loans"; the IFRS term for "sales less cost of sales" is "revenue". The give-away is "peser", meaning that this was "earnt" or "earned" (in some contexts, "peser" means "to be worth").

I should also like to take this opportunity of dispelling any lingering confusion between "loan turnover" which means something like "churning" - changing a lot, and the term "turnover" now largely superseded by the term "revenue" as explained and defined above.

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Note added at 13 hrs (2006-10-31 15:55:22 GMT)
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I think the term "turnover" meaning "sales" arose from an accounting ratio, which is Stock at year-end times 365 / divided by "turnover" (here in the sense of "revenue")

The result is the number of days in the financial year in which the stock ***turns over*** once, and it is called "Stock turnover". Another explanation may be that "sales" are a measure of the pace at which the business "turns over".