1. Determine the rate of return for the cash flows shown. $7000 0 7 Year $90 $90 $90 5200 $200 $200 $3000 (2, Determine the ROR for the cash flows shown below both by trial and error (Ball Park) and Excel. Year Cost($000)Savings ($000 0 3) The purchase price of a machine is $175,000. In addition, in order to get the product ready to use, another $45,000 is needed for electrical materials and $91,000 for labor to install the machine. The projected profit as a result of using the machine is $126,000 per year for 5 years. After 5 years, the machine can be sold for $92,000. What rate of return will be made? Solve both by trial and error (Ball Park) and Excel