Report on goods TOP-20% of sales

Colleagues, who gets this #report: Increase/loss of goods in monetary terms at input prices We have a base for analysis: - purchases and their receipt prices - sales and their selling prices Quantity for individual items: - at the beginning of the period - admission - retirement - at the end of the period total quantities by product categories sum of line items - at the beginning of the period - admission - retirement - at the end of the period sum totals by categories of goods total total sum total total What fields are enough to see to make product decisions to be taken out of stock. How can such a report be obtained? to avoid modifications. Share your experience, how did you solve the problem with analytics?