Jill is the manager at a bookstore that sells calendars featuring local photographs. She orders them from a supplier that charges $ 7 per calendar for orders received by November 1. Jill sells these calendars to her customers for $ 12 apiece. Any unsold calendars can be returned to the supplier in February for a credit of $ 2.50 apiece. Jill estimates that demand levels for the calendars will be 500, 1,000 or 1,500, and these are the order quantities she is choosing among. Construct a decision table for Jill.