2. Maria Lopez, CEO of Sales Bin Stores, is considering a recommendation made by both the company's purchasing manager and director of finance that the company should invest in a sophisticated new perpetual inventory system to replace its periodic system. Explain the primary difference between the two systems, and discuss the potential benefits of a perpetual inventory system. 3. As the end of Smyle Company's fiscal year approached, it became clear that the company had considerable excess inventory. Marvin Ross, the head of marketing and sales, ordered salespeople to "add 20% more units to each order that you ship. The customers can always ship the extra back next period if they decide they don't want it. We've got to do it meet this year's sales goal" Discuss the accounting imnlications of Marvin's action