Hudson Corporation is considering three options for managing its data warehouse: continuing with its own staff, hiring an outside vendor to do the managing, or using a combination of its own staff and an outside vendor. The cost of the operation depends on future demand. The annual cost of each option $($in thousands of dollars$)$ depends on demand as follows.

Demand

Staffing Options High Medium Low

Own staff $600600550$

Outside vendor $850550250$

Combination $750600450$