Available to invest = Portfolio = $1,000,000Inflation rate = 2%Step 1. Set up an "Amortization Table" to show exactly what's happening. We begin with $1 million. But we immediately make the first withdrawal, hence have less than $1 million to invest. We don't know how much we can withdraw initially, so we make a "guess" of $50,000. We subtract the $50,000 from the initial portfolio and get $950,000, which is invested at 5% and thus earns $47,500. The earnings are added to the beginning balance, less the withdrawal, to produce the ending balance, which is carried forward to create the next beginning balance. This process is continued for 15 years. Step 2. We want to end up with a $0.00 ending balance. With the $50,000 initial withdrawal, we see that we end with more than zero. Therefore, we should make a larger initial withdrawal. We could just go through a series of trials and errors until we found an initial withdrawal that produced the zero ending balance. The amount that does the trick is $81,027.42. Replace the $50,000 with 81027.42 to prove that this value "works" to within one penny. BOY Beginning Amount Investable Ending Balance Withdrawn Funds Earnings Balance1 $1,000,000.00 $81,027.42 $918,972.58 $45,948.63 $964,921.212 $964,921.21 $82,647.97 $882,273.24 $44,113.66 $926,386.903 $926,386.90 $84,300.93 $842,085.97 $42,104.30 $884,190.274 $884,190.27 $85,986.95 $798,203.33 $39,910.17 $838,113.495 $838,113.49 $87,706.69 $750,406.81 $37,520.34 $787,927.156 $787,927.15 $89,460.82 $698,466.33 $34,923.32 $733,389.647 $733,389.64 $91,250.04 $642,139.61 $32,106.98 $674,246.598 $674,246.59 $93,075.04 $581,171.55 $29,058.58 $610,230.139 $610,230.13 $94,936.54 $515,293.59 $25,764.68 $541,058.2710 $541,058.27 $96,835.27 $444,223.00 $22,211.15 $466,434.1511 $466,434.15 $98,771.97 $367,662.18 $18,383.11 $386,045.2912 $386,045.29 $100,747.41 $285,297.87 $14,264.89 $299,562.7713 $299,562.77 $102,762.36 $196,800.41 $9,840.02 $206,640.4314 $206,640.43 $104,817.61 $101,822.82 $5,091.14 $106,913.9615 $106,913.96 $106,913.96 $0.00 $0.00 $0.00Using Goal Seek:1. Put the pointer on the cell for the Ending Balance after the 15th withdrawal.2. Click Tools>Goal Seek to get a dialog box, which you then fill out as shown to the right.3. You will be at the "Set cell" because you put the pointer there initially.4. Go down to the "To value to" cell. You want to get 0 as the ending balance, so enter 0 here.5. Now move down to the "By changing cell" box, then click on the cell with the Year 1 withdrawal and select it.6. Now click OK, and the initial withdrawal will change to $81,027, and the final balance will go to $0.00. You could increase the decimals shown to see the extra digits Excel calculated.Calculator solution:Step 1: Find the real rate of return, rr. rr = (1 + rNOM)/(1 + inflation) 1 RR = (1.05)/(1.02) 1 RR = 2.9412% Bước 2: Sử dụng chức năng PMT trong Excel hoặc một máy tính để tìm thấy số tiền ban đầu để được rút ra. Hãy chắc chắn để thiết lập máy tính để chế độ bắt đầu, và thực hiện tương tự như là một điều chỉnh chức năng Excel. BẮT ĐẦU N = 15 Tôi = rr = 2.9411765% PV = 1, 000, 000 PMT = $81,027.42 Điều này là phù hợp với giá trị tìm thấy bằng cách sử dụng mục tiêu tìm kiếm. 165. Julian và Jonathan là anh em sinh đôi (và do đó đã được sinh ra trong cùng một ngày). Hôm nay, cả hai bật 25. Ông nội của họ bắt đầu đưa $2,500 mỗi năm vào một quỹ ủy thác cho Julian sinh nhật 20 của mình, và ông chỉ cần thực hiện một khoản thanh toán 6 vào quỹ. Ông nội (hoặc ủy viên quản trị của bất động sản) sẽ thực hiện thanh toán $2,500 40 thêm cho đến khi một 46th và thanh toán cuối cùng được thực hiện vào ngày sinh nhật lần thứ 65 Julian's. Ông thiết lập những điều lên theo cách này bởi vì ông muốn Julian để làm việc, không phải là một "Quỹ ủy thác baby", nhưng ông cũng muốn đảm bảo rằng Julius cung cấp cho trong tuổi già của mình.Until now, the grandfather has been disappointed with Jonathan and so has not given him anything. However, they recently reconciled, and the grandfather decided to make an equivalent provision for Jonathan. He will make the first payment to a trust for Jonathan today, and he has instructed his trustee to make 40 additional equal annual payments until Jonathan turns 65, when the 41st and final payment will be made. If both trusts earn an annual return of 8%, how much must the grandfather put into Jonathan's trust today and each subsequent year to enable him to have the same retirement nest egg as Julian after the last payment is made on their 65th birthday?a. $3,726b. $3,912c. $4,107d. $4,313e. $4,528ANS: AJulian's retirement account Jonathan's retirement account No. of payments thus far, Payment today 1including today's payment 6 Number of remaining payments 40 40N = total payments 46 N 41I/YR 8.0% I/YR 8.0%PV $0 PV $0PMT $2,500 FV = Jonathan's FV = $1,046,065FV Julian's FV = $1,046,065 PMT $3,726
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