|| By showing overall changes in sales quantity, sales, product, marketing and finance managers can see at-a glance which region sales organization, product and customer group, etc. require attention. The analyses of sales quantity answer common business questions as below, - Which products have the greatest sales quantity and the least sales quantity? - What other products are selling at the same time to the top sales customer? - Which products have declining sales momentum? - How have sales quantities of product X changed period over period? - What is the annual sales trend of each product? - How do promotion activities effort in sales quantities? In general speaking, increase in sales quantity results in sales revenue if sales price and market requirement remain fairly constant over a period. In reality, however, actual results may be constrained by various factors, such as promotion campaign, competitors' sales strategy, change of economics environment etc.