Xeroxs iGen3 high-speed commercial printers cost $1.5 billion to develop. The machines cost $500000 to $750000 depending on what options the client selects. Spectrum Imaging Systems is considering purchasing a new printer because of recent contracts it received for printing a weekly magazine and newspaper advertising materials. The opening costs and revenues generated are related to a large extent to the speed and other capabilities of the copier. The company is considering the four machines shown below. The company uses a 3-year planning period and a MARR of 15% per year. Determine which copier the company should acquire on the basis of incremental rate of return analysis. (include do nothing as the first alternative)

*** solve using excel and show the functions as well as the steps that you use

Copier	Inital Investment$	Operating Cost $ per year	Annual income $ per yeat	Salvage Value $
Igen-1	-500000	-350000	450000	70000
igen-2	-600000	-300000	460000	85000
igen 3	-650000	-275000	480000	95000
Igen-4	-750000	-200000	510000	120000