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EKONOMI REKAYASA. PERTEMUAN III B/C & PAYBACK METHOD. Oleh : Arwan Apriyono. PROGRAM STUDI TEKNIK SIPIL JURUSAN TEKNIK FAKULTAS SAINS DAN TEKNIK UNSOED TAHUN 2011. B/C Formula. If. Assess 1 Project The project is profitable, if this ratio is greater than one,.
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EKONOMI REKAYASA PERTEMUAN III B/C & PAYBACK METHOD Oleh : Arwan Apriyono PROGRAM STUDI TEKNIK SIPIL JURUSAN TEKNIK FAKULTAS SAINS DAN TEKNIK UNSOED TAHUN 2011
B/C Formula If Assess 1 Project The project is profitable, if this ratio is greater than one, Assess >2 Project Use incrementa Analysis If B/C ≥ 1 choose the higher investation If B/C < 1 , choose the lower investation
Example Assess 1 Project A car leasing company buys a car from a wholesaler for $24,000 and leases it to a customer for four years at $5,000 per year. Since the maintenance is not included in the lease, the leasing company has to spend $400 per year in servicing the car. At the end of the four years, the leasing company takes back the car and sells it to a secondhand car dealer for $ 15,000. For the moment, in constructing the cash flow diagram, we will not consider tax, inflation, and depreciation.
Example Step 1 Make cast flow diagram
Example Step 1 Calculate the net present value of the benefits and the costs.
Example Compare 2 Project Project A : Example 1 Project B : Buy a car at $25,000, lease it for two years at $10,000 per year with no maintenance cost and sell it for $18,000 at the end of two years. Assuming an interest rate of 10%, which project should we choose?
Example Solution Castflow Project A Castflow Project B Increment Castflow
Example Solution B/C lebih dari 1, maka ambil project yang investasi lebih besar Jika B/C lebih kecil dari 1, ambil project yang investasi/cost lebih kecil
Payback Method • If • is the period of time required for the benefits of an investment to equal the cost of the investment • We first construct the net cash flow diagram and then by simple arithmetic calculation add the benefits and the cost year by year until the total equals the initial investment. • The payback period neglects the time value of money and is only accurate when the interest rate is zero • Many analysts consider this method to be a useful quick and dirty way of comparison. Benefit tidak sama dengan profit Profit = benefit - cost
Example • If
Example Alternative A : Payback period is the period of time required for the profit or other benefits of an investment to equal the cost of the investment. Thus the payback period for Alt. A is 2.5 years. Alternative B : Since the annual benefits are uniform, the payback period is simply : • $2783/$1200 per year - 2.3 years • Tominimize the payback period, choose Alt. B
Task 3 Dikumpulkan Kamis 8 Desember 2011 Two machines are being considered for purchase. If the MARR is 10%,which machine should be bought? • Use an IRR analysis comparison. • Use a payback periode analysis • If, interest is 15%, which machine should be chosen