How to compute the respective ROI for manpower and equipment?

Below are some financial data and projection that HR department uses for its workforce forecasting and justification on manpower over purchase of equipment. Each new commercial real estate management contract is worth $60,000 on average; Fortress is projecting to obtain an average of five commercial real estate management contracts annually for the next two years; Average cost of hiring a security officer with screening, interview, licensing requirement, foreign levy and employment related cost is $3,000; Average cost of base pay, annual bonus and benefits of a security officer is $46,200 per year; Average cost of training for a security officer is $1,000 per year; Cost of surveillance equipment over 10-year amortization is $1,000,000, that is $100,000 per year amortized cost of equipment; Assume $80,000 worth of increase in operation efficiency and increase of customer service per year; $15,000 new equipment maintenance cost per year. . . . Below are some financial data and projection that HR department uses for its workforce forecasting and justification on manpower over purchase of equipment. Each new commercial real estate management contract is worth $60,000 on average; Fortress is projecting to obtain an average of five commercial real estate management contracts annually for the next two years; Average cost of hiring a security officer with screening, interview, licensing requirement, foreign levy and employment related cost is $3,000; Average cost of base pay, annual bonus and benefits of a security officer is $46,200 per year; Average cost of training for a security officer is $1,000 per year; Cost of surveillance equipment over 10-year amortization is $1,000,000, that is $100,000 per year amortized cost of equipment; Assume $80,000 worth of increase in operation efficiency and increase of customer service per year; $15,000 new equipment maintenance cost per year