Here's a rough translation into English (the preferred language for xTuple forums):
Good morning gentlemen
In the company I work for just put me to work with xTuple and I know very well all even, the point is that I'm loading the products of a restaurant and the owners want to have the system throw the average cost of the product based on all purchases that are made each month, I have been researching the program and all
it is found that only brings me the last price at which you purchased the item.
If anyone knows how I can get the average cost of the product will agradeciera much to tell me.
I hope you can help me