A-B-C classification A local manufacturer is asking you to help them with the analysis of a family of items purchased last year. These items are electronic/mechanical components used for the assembly of vending machines. Below are the list of items, their cost per unit, and last year's consumption. Perform A-B-C classification on these items.

Item #	Unit cost ($)	Annual volume (consumption)
1	100	2500
2	80	3000
3	15	6000
4	50	1000
5	11	7000
6	60	8500
7	10	6000