What is the expected net cash inflow per year from purchasing a second shrink$-$wrap machine $($i$.$e$.,$ how much cost could be saved each year by eliminating the wait time$)?$

What is the payback period of the second shrink$-$wrap machine? Round your answer to two decimal places.

What would the expected net cash inflow per year be if the hourly wage rate used for this analysis was increased by $25\%$ to reflect the cost of employee benefits?

What is the payback period of the second shrink$-$wrap machine when the increased wage rate is used to calculate the expected net cash inflow per year? Round your answer to two decimal places.

Did the payback period using the increased hourly wage rate increase or decrease as compared to the original payback period using the hourly rate without any benefits included? Explain.