PROBLE M S P7.1 You are planning to purchase a range and have to make a choice among the following three models of the same type of equipment Model 1 Model 2 Model 3 Cash cost Estimate life Trade-in value at end of life Cash from sale of old machine Installation of new machine Initial training cost in Year 1 Annual maintenance contract Annual cost of supplies Annual wage costs of employees S 5,000 5,500 5,300 5 years5 years 5 years $ 1,000 1.200 800 $ 200200 200 S 80 120 100 $ 350 300 325 $ 275 300 250 $ 175 225 200 S32.000 $32,000 $32,000