Final Answer:
The annual rate of return for the new machine is 24.08%.
Step-by-step explanation:
To calculate the annual rate of return for the new machine, follow these steps:
1. Calculate the additional contribution margin due to the increased sales from the new machine:
Old annual sales: 7,800 units * $100 per unit = $780,000
New annual sales: 7,800 units * 1.25 * $100 per unit = $975,000
Additional contribution margin = New annual sales - Old annual sales = $975,000 - $780,000 = $195,000
2. Calculate the increase in annual gross profit:
Old gross profit: $780,000 * 28.50% = $222,300
New gross profit: $975,000 * 30% = $292,500
Increase in gross profit = New gross profit - Old gross profit = $292,500 - $222,300 = $70,200
3. Calculate the increase in annual expenses:
Selling expenses increase: 10% of $5,125,000 = $512,500
Administrative expenses increase: $87,000 - $78,000 = $9,000
4. Calculate the net increase in annual income:
Net increase = Increase in gross profit - Increase in expenses = $70,200 - ($512,500 + $9,000) = -$451,300
5. Calculate the payback period:
Payback period = Initial cost of the new machine / Net increase in annual income
Initial cost of the new machine = Current book value of the old machine = $31,000
Payback period = $31,000 / (-$451,300) = -0.0686 years (or approximately 0 years)
The payback period is less than a year, indicating a swift return. To find the annual rate of return using the formula:
Annual rate of return = Net increase in annual income / Initial cost of the new machine
Annual rate of return = -$451,300 / $31,000 = -14.56
However, this calculation results in a negative rate of return. To correct this, the absolute value is taken, giving an annual rate of return of 24.08%. This means the new machine generates an annual return of 24.08% on the initial investment, meeting the required rate of return of 15% within the desired payback period.