10B2 Calculator Keys

Front 1

(white) left arrow

Back 1

erases last character.

Front 2

orange, CLSigma

Back 2

clears statistics memory.

Front 3

orange / C ALL

Back 3

clears all memory.

Front 4

FUNCTION for PERCENTAGES:

time value of money calculates:

Back 4

loans, savings, leases, and amortization schedules.

Front 5

FUNCTION for PERCENTAGES:

interst conversion calculates:

Back 5

nominal and effective rates.

Front 6

FUNCTION for PERCENTAGES:

cash flows calculates:

Back 6

net present value and internal rate of return. (NPV & IRR)

Front 7

FUNCTION for PERCENTAGES:

business percentages calculate:

Back 7

percent change, markup, and margin calculations.

Front 8

FUNCTION for PERCENTAGES:

statistics calculates:

Back 8

mean, standard deviation, correlation coefficient, and linear regression forecasting, etc.

Front 9

CST

Back 9

cost.

Front 10

PRC

Back 10

price.

Front 11

MAR

Back 11

margin.

Front 12

MU

Back 12

markup.

Front 13

Add 15% to $17.50.

What is 15% more than $17.50?

Back 13

17.50 + 15% =

Front 14

Find the margin if the cost is $15.00 and selling price is $22.00.

Back 14

15 CST
22 PRC
MAR
calculates margin at $31.82

Front 15

If the cost is $20.00 and the markup is 33%, what is the selling price?

Back 15

20 CST
33 MU
PRC
calculates price at $26.60

Front 16

FUNCTIONS for MEMORY KEYS:

K

Back 16

stores a constant operation.

Front 17

FUNCTIONS for MEMORY KEYS:

-->M

Back 17

Stores a value in the M register (memory location).

Front 18

FUNCTIONS for MEMORY KEYS:

RM

Back 18

recalls a value from the M register.

Front 19

FUNCTIONS for MEMORY KEYS:

M+

Back 19

adds a value to the number stored in the M register.

Front 20

FUNCTIONS for MEMORY KEYS:

oranger / STO

Back 20

stores a value in a numbered register.

Front 21

FUNCTIONS for MEMORY KEYS:

RCL

Back 21

recalls a value from a numbered register.

Front 22

multiply 17, 22, and 25 by 7,
storing "x 7" as a constant operation.

Back 22

17 x 7 K (shows 7.00)
= 119.00
22= 154.00
25= 175.00

Front 23

store 519 in register 2, then recall it.

Back 23

519 orange / STO 2
C
RCL 2

Front 24

FUNCTIONS for TVM KEYS:
(time value of money)
explanation:

Back 24

Enter any four of the five values and solve for the fifth.

a negative sign in the display represents money paid out; money received is positive.

Front 25

FUNCTIONS for TVM KEYS:
(time value of money)

N

Back 25

number of payments.

Front 26

FUNCTIONS for TVM KEYS:
(time value of money)

I/YR

Back 26

interest per year.

Front 27

FUNCTIONS for TVM KEYS:
(time value of money)

PV

Back 27

present value.

Front 28

FUNCTIONS for TVM KEYS:
(time value of money)

PMT

Back 28

payment.

Front 29

FUNCTIONS for TVM KEYS:
(time value of money)

FV

Back 29

future value.

Front 30

FUNCTIONS for TVM KEYS:
(time value of money)

orange / BEG/END

Back 30

begin or end mode.

Front 31

orange / P/YR

Back 31

number of payments per year mode.

Front 32

If you borrow $14,000 (PV) for 360 months (N) at 10% interest (I/YR), what is the monthly repayment?

Back 32

* Set to END mode.
* Press orange / BEG/END if BEGIN annunciator is displayed.
* 12 orange P/YR (sets payments per year)
* 360 N (enters # of pmts)
* 10 I/YR (enters interst/yr)
* 14000 PV (enters present value
* 0 FV (enters future value)
* PMT (calculates payment if paid at end of period)
- 122.86

Front 33

360 months = years
180 months = years

Back 33

30 years.
15 years.

Front 34

amortize

Back 34

To provide for the gradual extinguishment of (as a mortgage) usually by contribution to a sinking fund at the time of each periodic interest payment.

Front 35

FUNCTION KEYS AMORTIZATION:

orange / AMORT

Back 35

to enter the periods to amortize

Front 36

FUNCTION KEYS AMORTIZATION:

PRIN

Back 36

principal .

Front 37

FUNCTION KEYS AMORTIZATION:

INT

Back 37

interest.

Front 38

FUNCTION KEYS AMORTIZATION:

BAL

Back 38

balance values.

Front 39

Interest rate conversion calculations, explanation:

Back 39

To convert between nominal and effective interest rates, enter the known rate and the number of periods per year, then solve for the unknown rate.

Front 40

FUNCTION KEYS for INTEREST RATE CONVERSION:

orange / NOM%

Back 40

Nominal interest percent.

Front 41

FUNCTION KEYS for INTEREST RATE CONVERSION:

orange / EFF%

Back 41

Effective interest percent.

Front 42

FUNCTION KEYS for INTEREST RATE CONVERSION:

orange / P/YR

Back 42

Periods per year.

Front 43

Find the annual effective interest rate of 10% nominal interest compounded monthly.

Back 43

*10 orange / NOM%
* 12 orange / P/YR
*orange / EFF% (calculates annual effective interest... at 10.47)

Front 44

Nominal interest rate:

Back 44

?

Front 45

Effective interest rate:

Back 45

?

Front 46

FUNCTION KEYS: IRR/YR and NPV:

What they are for:

Back 46

(internal rate of return and net present value - for measuring cash flow)

Front 47

FUNCTION KEYS: IRR/YR and NPV:

orange / P/YR

Back 47

number of periods per year (default is 12)

Front 48

FUNCTION KEYS: IRR/YR and NPV:

CFj

Back 48

Cash flows, up to 15.

"j" identifies the cash flow number.

Front 49

FUNCTION KEYS: IRR/YR and NPV:

orange / Nj

Back 49

Number of consecutive times cash flow "j" occurs.

Front 50

FUNCTION KEYS: IRR/YR and NPV:

orange / IRR/YR

Back 50

internal rate of return per year.

Front 51

FUNCTION KEYS: IRR/YR and NPV:

orange / NPV

Back 51

Net present value.

Front 52

If you have an intital cash outflow of $40,000, followed by monthly cash inflows of $4,700, $7,000, $7,000, and $23,000, what is the IRR/YR?

What is the IRR per month?

Back 52

* orange / C ALL
* 12 orange P/YR
* 40000<+/=>CFj
* 4700 CFj
* 7000 CFj
* 2 orange Nj
* 23000 CFj
* orange IRR/YR
* / 12 =

Front 53

What is the NPV if the discount rate is 10%?

Back 53

* 10 I/YR
* orange / NPV
* answer 622.85

Front 54

FUNCTION KEYS: STATISTICS:

orange / CLSigma

Back 54

Clear statistical registers.

Front 55

FUNCTION KEYS: STATISTICS:

<#> S+

Back 55

Enter one-variable statistical data.

Front 56

FUNCTION KEYS: STATISTICS:

<#> orange / S-

Back 56

delete one-variable statistical data.

Front 57

FUNCTION KEYS: STATISTICS:

<#1> INPUT <#2> S+

Back 57

Enter two-variable statistical data.

Front 58

FUNCTION KEYS: STATISTICS:

<#1> INPUT <#2> orange S-

Back 58

delete two-variable statistical data.

Front 59

FUNCTION KEYS: STATISTICS:

orange, x-hat/y-hat, orange, SWAP

Back 59

means of X and Y

Front 60

FUNCTION KEYS: STATISTICS:

orange, X-hat x

Back 60

means of X weighted by Y

Front 61

FUNCTION KEYS STATISTICS:

orange, Sx/Sy, orange, SWAP

Back 61

sample standard deviations of X and Y.

Front 62

FUNCTION KEYS STATISTICS:

orange, SigmaX/SigmaY, orange, SWAP

Back 62

population standard deviations of X and Y.

Front 63

FUNCTION KEYS STATISTICS:

y-value, orange, x-hat r, orange, SWAP

Back 63

estimate of X and correlation coefficient.

Front 64

FUNCTION KEYS STATISTICS:

x-value, orange, y-hat m

Back 64

estimate of Y.

Front 65

FUNCTION KEYS STATISTICS:

0, orange, y-hat m, orange, SWAP

Back 65

y-intercept and slope.