expected unit sales, revenues and profits
Here is the problem: Last week, Archie Bunker's offered a 25 cent coupon on 12-packs of Diet Cola, regularly priced at $4. Coupons were used on 40% of all purchases, and resulted in an increase from 400 to 490 cases sold per week. I know that to find Ep = % change in qty / % change in price, and the equation for optimal ma
