HP12C/MAth Flashcards
How do you do weighted average on HP12C?
$1000 [ENTER] 50 [Σ+] (aka 50%)
$900 [Enter] 40 [Σ+] (aka 40%)
$1200 [Enter] 10 [Σ+] (aka 10%)
[g blue] - [6] (xw - average weighted)
Result $980
How to do linear regression on HP12C?
Example:
Estimate a projected sales price of a 1,550-square-foot property where comparable sales provide the following information:
Sale Price Square Feet
#1 $58,000 1,300
#2 $65,000 1,475
#3 $72,000 1,600
58,000 [ENTER] 1,300 [Σ+]
65,000 [ENTER] 1,475 [Σ+]
72,000 [ENTER] 1,600 [Σ+]
1,550 blue [g] [2] y,r
Indicated value of subject is: $69,238.53
How many days are between June 3, 2005 and October 16, 2006?
Be sure that your HP12C is set to the correct sequence of data entry blue [g] [5]
6.032005 [ENTER]
10.162006 [ g ] [ DYS] (that one’s in the middle, in blue under [EEX])
Answer on the Display is: 500
What date would be 150 days from June 15, 2007?
Be sure that your HP12C is set to the correct sequence of data entry blue [g] [5]
6.152007 [ENTER]
150 [ g ] [DATE] (that one is on the bottom of [CHS] in blue)
The answer on the display is: 11,12,2007 1
That is November (11th month), 12th day of 2007, and 1 means it’s the first day of the week and/or a Monday.
If income from a property rises 6% per annum, what will the income be next year if it was $45,000 this year?
45,000 [ENTER]
6 [%] [ + ]
47,700 = 6% more than 45,000
Note: for % less press the [ - ] instead of the [ + ].
What is the percentage of increase from $220,000 to $242,000?
220,000 [ENTER]
242,000 [∆%]
10.00 = the percentage of increase is 10%
Note: for % of decrease, enter the higher number followed by the lower.
The number 8,000 is what percentage of 32,000?
32,000 [ENTER]
8,000 [%T]
25.00 means that 8,000 is 25% of 32,000.
Using the numbers 100, 103, 105, 106, and 108, calculate the standard deviation and mean
100 [Σ+]
103 [Σ+]
105 [Σ+]
106 [Σ+]
108 [Σ+]
blue [g] [.] (s) - standard deviation
blue [g] [0] (x) - mean
The Six Functions of a Dollar on HP
- 5 top left buttons
n is the number of periods. This is the time factor.
i is the interest rate
PV stands for Present Value
PMT is the payment
FV is Future Value
Create the amortization schedule for the first three payments on the $100,000 loan for 30 years. 10% interes
Payment——-Balance——-Interest——–Principal
—1————–$100,000—–$10,000.00—–$607.92
—2————–$99,392.08—-$9,939.21—–$668.71
—3————–$99,872.34—-$9,872.34—–$735.58
How much will we pay in interest the first year for a 30-year (monthly payments) mortgage of $182,000 at a 6.2% interest rate.
First, we need to find the monthly payment:
f CLEAR FIN
30 [g] [n]
6.2 [g] [i]
182000 [PV]
[PMT]
You should have gotten - $1,114.69
12 [f ] [AMORT] = -11,223.50 (Interest for year 1)
[x><y] = - 2,152.78 (Principal for year 1)
[RCL] [PV] = 179,847.22 (Remaining Balance)
[RCL] [n] = 12.00 (Number of payments)
If you want to continue you can just go ahead with the next year.
12 [f ] [AMORT] = -11,086.18 (Interest for 2nd year)
[x><y] = - 2,290.10 (Principal for 2nd year)
[RCL] [PV] = 177,557.12 (Remaining Balance)
[RCL] [n] = 24.00 (Number of payments)
You have a mortgage of $112,500 written for 25 years at 7.2% annually (monthly payments). However, there will be a balloon payment due at the end of year five. How much will that be (the amount of the remaining balance of the loan at that point)?
[f] [CLEAR] [FIN]
25 [g] [n]
7.2 [g] [i]
112500 [CHS] [PV]
[PMT] = 809.54
Then we leave all the information in the rest of the registers, but change the entry in the n register to five years and ask for the future value after five years.
5 [g] [n]
[FV] = 102,818.06
Therefore, the remaining balance at the end of five years of the 25-year scheduled payout, to be paid off as a lump sum balloon payment, would be $102,818.06.
An office is leased for a three year period at $3,000 per month, payable at the beginning of each month. Market rent is $4,000 per month. The estimated market interest rate is 5%. Calculate the present value.
[ g ] [BEG] (remember the problem said rents paid in advance, so you need to change from END to BEG)
3 [ g ] [ n ] (monthly rent, so just like the monthly mortgage payments = [ g ] needed)
5 [ g ] [ i ]
1,000 [CHS] [PMT]
[PV]
Display reads: $33,504.73
A small, single-tenant, freestanding office building rents for $2,500 per month, payable in advance each month. Your research concludes that the Market Rent for this unit would be $3,500 for the full three-year term of the lease. Additional research indicates that the market rate for leasehold investments is 9%. What is the present value of the leasehold interest?
Market Rent: $3,500
Contract Rent: $2,500
It is easy to see that the leasehold interest is $1,000 better off each month. This raises the question:
What is the present value of $1,000 per month for three years at a rate of 9%?
Remember, there are two special things we have to do in this problem:
Put “BEGIN” in the Display; and
Remember to use the blue [ g ] key to change payments to “monthly” as we did when calculating monthly mortgage payments.
First, clear the calculator: [ f ] [REG]. Now press the blue [ g ] key and then the [BEG], (the word “Begin” should be in the Display). Then key in 3 (for the number of years) and then the blue [ g ] key (for monthly intervals). Next press the [ 9 ] key, followed by the blue [ g ] key again (to make it monthly) and then press [ i ]. The calculator is now ready for the money to be entered.
Key in $1,000 (the monthly advantage of the lessee), then the [CHS] and the [PMT]. Since that is the cash flow, it is viewed a payment. To solve for the present value, press [PV].
Let’s look at just the keystrokes:
[ g ] [BEG]
3 [ g ] [ n ]
9 [ g ] [ i ]
1,000 [CHS] [PMT]
[PV]
Display reads: 31,682.66
The value of the Leasehold is $31,682.66
If you did not get the same answer, go back and try it again until you do.
What if the contract rent is greater than market rent? In such cases the Leasehold has no advantage, so it could actually have a negative value.
What is the present value of $1,500 per year for 12 years at 15%, with the rent payable at the end of each period?
This time we have to start with the calculator in the “END” mode, so press the blue [ g ] key and then the [END].
As always, clear the calculator: [ f ] [REG]
Now you’re ready!
12 [ n ]
15 [ i ]
1,500 [CHS] [PMT]
[PV]
Display reads: $8,130.93
A property is leased at a rent of $20,000 per year (payable at the end of each period) for five years. At the termination of the lease, the property is anticipated to be sold for $300,000. What is the value of the leased fee interest if the market derived rate is 10%?
-Clear the calculator.
-Make sure “Begin” is not in the Display.
5 [ n ]
10 [ i ]
20,000 [CHS] [PMT]
300,000 [CHS] [FV]
[PV]
Display reads: 262,092.13
A property is leased for five years. The annual rent starts at $20,000 (payable at the end of each rental period) and increases $1,000 per year. This is the forecasted rent for the entire lease period. The market derived rate for this property is 10%. The value of the reversion at the end of the lease is $250,000. What is the value of the leased fee?
This one looks scarier than it really is. There are just more keystrokes involved because you have to key in each year’s new rent to account for the changes in that category. We have two new keys involved, but they really aren’t totally new. [CFj] or cash flow “j” and the [NPV] or net present value keys are alternative functions of the [PMT] key and the [PV] key.
-Clear the calculator.
-Make sure “Begin” is not in the Display.
20,000 [ g ] [CFj] (Don’t get excited…[CFj] is on the bottom of the [PMT] key.)
21,000 [ g ] [CFj]
22,000 [ g ] [CFj]
23,000 [ g ] [CFj]
274,000[ g ] [CFj] (This is the 5th year’s rent plus the reversion or resale.)
10 [ i ]
[ f ] [NPV] ([NPV] is above the [PV]…that’s why we pressed the [ f ].)
Display reads: 237,907.87
The value of the leased fee interest (present value of the cash flows plus the present value of the reversion) is $237,907.87.
The first tenant is a convenience store that pays $2,000 per month. The second is a coin laundry that pays $1,500 per month. The third tenant is a shoe repair shop that pays $500 per month for a small alcove. The fourth tenant is a real estate broker’s office paying $1,000 per month. For the purposes of this case study, assume that all leases are true Net Leases (NNN) where the tenants pay all operating expenses including property management fees so these rents represent the true “Net Income” on each lease.
The investor contacts you to perform an appraisal to estimate the value of a potential leased fee interest in the property. You have experience in performing this type of assignment in this market area, and agree to do it. An engagement letter is signed by both parties, and your task begins.
Through extensive research you find, after weighing capital investment, risk, liquidity, and other factors, the market rate for such investments is 9%. You also perform a prospective value estimate on the real property, based on research with investors and experts in the field, and believe the value of this property at the end of the five years will be $650,000.
Calculated the value of the leased fee interest. Remember, when using income capitalization methodology you use annual income and expenses not monthly in your calculation.
!!!!!!!!!!!!!!!!!!!!!!!!!!!
The keystrokes on the HP12C calculator to reach this solution are:
First clear the financial memory by these keystrokes: f [FIN]
Enter the number of periods: 5 [n]
Enter the rate of return: 9 [i]
Enter the annual cash flow by multiplying the monthly net income by 12 then entering it: 5000 ENTER 12 X [CHS] [PMT]
Enter the sale reversion at the end of five years: 650,000 [CHS] [FV]
Request the unknown Present Value: [PV]
The answer to the Chapter 10 case study is $655,834.48.
If the market rents show the convenience store rental should be $3,000 per month rather than the $2,000 contracted for the full 5 year term of the lease, and you use the same 9% rate, what is the value of the convenience store’s leasehold calculated on the monthly difference (assuming payments at the end of the month)?
If the market rents show the convenience store rental should be $3,000 per month rather than the $2,000 contracted for the full 5 year term of the lease, and you use the same 9% rate, what is the value of the convenience store’s leasehold calculated on the monthly difference (assuming payments at the end of the month)?
$48,173.37
Leasehold Interest. f [FIN] 5 g [n] 9 [i] 1,000 [CHS] [PMT] [PV]
A property can be purchased with a 70 percent loan. The loan would have a 20-year term with monthly payments at 8 percent interest. The indicated mortgage capitalization rate is 0.1004. This particular lender is requiring a 1.3 debt coverage ratio. What is the indicated overall rate (RO) based on this information?
9.14%
1.3 ENTER .1004 [X] .70 [X]
A property is purchased for $100,000 and produces cash flows of $10,000 for five years, at which time it is sold for $110,000. Calculate the internal rate of return.
For example, a property is purchased for $100,000 and produces cash flows of $10,000 for five years, at which time it is sold for $110,000. The internal rate of return can be calculated as follows using your HP12C financial calculator:
100000 [CHS] [CFo] (you need a negative number to begin with to express the outflow of cash in the purchase - the CFo is under the PV key)
10000 [g] [CFj] (the income is express as positive - the CFj key is under the PMT key)
4 [g] [Nj] (this is the number of cash flows in years BEFORE the final year)
10000 [ENTER] 110000 + (This adds the final year cash flow to the sale proceeds also received at the end of that final year)
[g] [CFj] (This enters both the final year cash flow and the sale proceeds into the series of cash flows, since it happens only once you do not need the Nj entry)
[f] [IRR] (The IRR key is in gold over the FV key)
After flashing for a while your display should show 11.59 which is the Internal Rate of Return
You want to know the Internal Rate of Return on an investment in an income producing property that was originally purchased for $500,000. Assume an annual cash flow of $35,000 during the entire five-year holding period. The property is sold at the end of the holding period for $650,000.
You want to know the Internal Rate of Return on an investment in an income producing property that was originally purchased for $500,000. Assume an annual cash flow of $35,000 during the entire five-year holding period. The property is sold at the end of the holding period for $650,000.
Here are your keystrokes:
5 [ n ]
500,000 [CHS] [PV]
35,000 [PMT]
650,000 [FV]
[ i ]
Display reads: 11.75
The Internal Rate of Return is 11.75%
Calculate the Internal Rate of Return on an investment property with an original purchase price of $400,000. Assume the first year’s cash flow is $30,000, but in this case it will increase by 3% annually for a five-year holding period. The property will be sold at the end of the holding period for a price of $500,000.
11.86%
Keystrokes are as follows:
400,000 [CHS] [g][CFo]
(Note: CFo is a new key for us on bottom of PV)
30,000 [ g ] [CFj] (Note: CFj is a new key for us on bottom of PMT)
30,900 [ g ] [CFj] (Note: second year is 3% more than first year)
31,827 [ g ] [CFj] (Note: + 3%)
32,782 [ g ] [CFj] (Note: + 3%)
533,765 [ g ] [CFj] (Note: + 3% last year’s cash flow plus reversion)
[ f ] [IRR] (Note: IRR is a new key for us above the FV)
Display reads: 11.86
The internal rate of return is 11.86%
Estimate the value of a life interest in a property with a present market value of $300,000. The life tenant’s life expectancy is 12 years, based on a life expectancy actuarial table. The market interest rate for this property is estimated to be 10%. The estimated value of the property at the end of the life tenancy (12 years) is estimated to be $500,000.
12 [ n ]
10 [ i ]
500,000 [CHS] [FV]
[PV]
Display reads: 159,315.41 (present value of the future value)
Then subtract:300,000.00
-159,315.41
140,684.59 Value of the Life Interest