Advance sales and stock reports

Hi Guys,

Struggling to find advance commerce reporting with our stock and sales. We are trying to work on demand planning and cannot find an easy way to find stock reports for last month vs this month. To have an easy way to filter or inventory grades for example (Best Seller is A, second best is B and least favored is C). In terms of sales would be great to have more in depth reporting and the ability to generate daily reports so we can closely compare the days. If there is an easy way to pull a report for sales and stock so we can forecast the behavior and double down on our budgets to meet targets.  This may be the first step to addressing the headache and simplifying it.