show the formulas where possible... thanks!

the per day charge for the of the residents are covered by non-private 24. Add-or-drop with net present value analysis (builds on material in Chapters Six and Seven). Franklin County Hospital, a nonprofit hospital, bought and installed a new com puter system last year for $60,000, The system is designed to relay information between labs and medical units. Charlene Walker, the hospital's new computer specialist, had a meeting with Lou Campbell, vice president of finance. She said: "Lou, today I read in a journal that a new computer system has just been introduced. It costs $32,000, butI believe that by replacing our old system, we could reduce operating and maintenance costs that are now being incurred," The following are Walker's estimates: Present System New System Purchase and installment price Useful life when purchased Computer operating costs per year Computer maintenance costs $60,000 $32,000 6 years years $35,000 $15,000 $14,000 $11,000 per year $10,000 $6,400 Depreciation expenses per year 10% 10% Cost of capital Based on an analysis, what advice should Walker give Campbell? . b.At what price for the new computer system would Campbell be indifferent on this decision? Is this a typical make-or-buy decision? Why or why not? c