Hi Ksenia
In Stock Central you can see the amount of sales per product. By default, you can see the sales the last 14 days but you can increase/decrease that number clicking over it at the column header.
What cannot be done actually is to show the number of sales for a product on a specific date range.
And additionally, if you need it, you have some extra filters there to show up the best sellers and worst sellers on a specific date range
Best Regards,
Salva.