Global supply chain management. Please Help, Thank you!

Problem 2. The Green Company is a retailer of gourmet bottled pickles that purchases its products from Whole, a gourmet food manufacturer. Green buys units (from Whole) at a price of $15 per unit and sells them to customers at $45 per unit. Currently Whole produces to Green's order and delivers all requirements at the start of the period. Leftover inventory at the end of the season will be donated to a charity organization for free. The demand is lost when Green does not have inventory. Wholes production cost is $10 per unit. Demand(units) Probability 100 0.2 200 0.3 300 0.2 400 0.3 1. Given the current information, how many units of products should Green stock to satisfy demand? What is the associated profit for Whole and Green and for the supply chain in total