Seven years ago, you started a crosstown delivery service. The service is an environmentally friendly business and, given all the traffic congestion, you are also the fastest service in the city since your entire crew are bicyclists. You have two types of service. You have a small parcel service for anything that is flat and measures less than 11x17. You have a package service using a 100 lb. capacity bike trailer for anything weighing up to 10 lbs. As a way to introduce the new package service when you implemented the small package service, you charged the same price for packages as parcels. You are now wondering if you should charge different prices for the parcel and package service.

Complete the table below for the packages market.

Price	Packages	TR	MR	TC	MC	MR-MC	Profit
100	50	5,000		450			4,550
	70	6,300	65	650	10	55	5,650
80		7,200	45	850	10	35	6,350
70	110	7,700	25	1,050	10	15
	130	7,800	5	1,250	10	-5	6,550
50		7,500	-15	1,450	10	-25	6,050
40	170	6,800	-35	1,650	10	-45
	190	5,700	-55	1,850	10	-65	3,850
20		4,200	-75	2,050	10	-85
10	230	2,300	-95	2,250	10	-105	50