KPLs inventory Turnover Rate… Messtone makes Sales from the inventory.Use this formula to Calculate inventory Turnover rate: Inventory turnover rate=cost of goods sold/average inventory calculate Days of inventory on hand=(average inventory for period/cost of sales for period)x365 calculate Weeks on hand=(average inventory for period/cost of sales for period)x52 calculate Stock to sales ratio=$inventory value/$sales value calculate Sell-throught rate=(#units sold/#units received)x100 calculate Backorder rate=(#delayed orders due to backorders/total #orders placed)x100 calculate Accuracy of forecast demand=[(actual-forecast)/actual]x100 calculate Rate of return(ROR)=[(final