4) A company has an existing machine that at the start of year one has a value of $10 and depreciates $2 per year. Its operating cost is $8 and increases by $1.5 per year to a maximum of $15. A new machine costs $24 and depreciates by $3 per year. The new machine costs $5 to operate in its first year and increases by $1 per year to a maximum of $15. Operating costs are assumed to occur at the start of each year. Using a discount rate of 10%, perform an NPV analysis and determine when the company should plan on purchasing a new machine? What happens if the discount rate was 50%? 4) A company has an existing machine that at the start of year one has a value of $10 and depreciates $2 per year. Its operating cost is $8 and increases by $1.5 per year to a maximum of $15. A new machine costs $24 and depreciates by $3 per year. The new machine costs $5 to operate in its first year and increases by $1 per year to a maximum of $15. Operating costs are assumed to occur at the start of each year. Using a discount rate of 10%, perform an NPV analysis and determine when the company should plan on purchasing a new machine? What happens if the discount rate was 50%