Functions In Excel

A Function Performs a predefined operation A function Accepts one or more arguments as input Performs the indicated calculation Returns another value as output

Main Functions Financial Functions Statistical Functions DATABASE Functions

Financial Functions

Annuity Functions An annuity is a series of constant cash payments made over a continuous period A car loan or a mortgage is an annuity Benefits received each period is an annuity Cash you pay out is represented by a negative number; cash you receive is represented by a positive number A $1,000 deposit to the bank would be represented by the argument if you are the depositor A $1,000 deposit to the bank would be represented by if you are the bank

Annuity Functions - PV Syntax =PV(rate,nper,pmt,fv,type) Rate Interest rate per period 10 percent annual interest rate; yearly benefits to MA degree Nper Total number of payment periods in an annuity – 43 years Enter 43 into the formula for nper Pmt Payment (benefit) made each period Cannot change over the life of the annuity

Annuity Functions - PV Fv Future value, or a cash balance you want to attain after the last payment is made If fv is omitted, it is assumed to be 0 (the future value of a loan, for example, is 0) Type Is the number 0 or 1 Indicates when payments are due/received 0 or omitted = at the end of the period 1 = at the beginning of the period

Financial Functions NPV IRR PMT IPMT Be consistent about the units for specifying rate and nper Monthly payments on a four-year loan at 12 percent annual interest, use 12%/12 for rate and 4*12 for nper. Annual payments on the same loan, use 12% for rate and 4 for nper

Internal Rate of Return (IRR) and Net Present Value (NPV)

PMT and IPMT PMT- This function calculates the payment for a loan based on constant payments and constant interest rate IPMT- This function calculates the interest payment based on periodic, constant payments and a constant interest rate

NPV NPV(rate,value1,value2,…) Rate is the rate of discount over the length of one period Value1,value2,… must be equally spaced in time and occur at the end of each period

IRR IRR(values,guess) Values are an array or a reference to cells that contains numbers for which you want to calculate the internal rate of return Guess is a number that you guess is close to the result of IRR

PMT PMT(rate,nper,pv,fv,type) Rate is the interest rte of the loan Nper is the total number of payments for the loan Pv is the present value Fv is the future value Type is the number 0 or 1 and indicates when payments are due

IPMT IPMT(rate,per,nper,pv,fv,type) Rate is the interest rate per period Per is the period for which you want to find the interest and must be in the range 1 to nper Nper is the total number of payment periods in an annuity Pv is the present value Fv is the future value Type is the number 0 or 1 and indicates when payments are due

Calculating NPV and IRR With Excel -- The Excel Worksheet.

Buying a Car BMW M5

What Will the Monthly Payments Be? Amount of loan, pv Interest rate, rate Number of payment periods, nper Term of the loan Future value, fv Future value of a loan=0 Type, when payments are due

Payment Function =PMT(rate,nper,pv,fv,type) Returns the payment per time period Cash you pay out is represented by a negative number by Excel Cash you receive is represented by a positive number Keep the interest per period and the payment periods in the same units To calculate monthly payments on a four year loan Use 12%/12 for rate and 4*12 for nper

Payment Function, cont. If you want the payment as a positive number Enter the loan amount (pv) as a negative number =PMT(.08/12,5*12,-15000) Place a negative sign before the function =-PMT(.08/12,5*12, 15000)

Payment Function, Examples Monthly payment on a $10,000 loan, annual rate of 8%, term is 10 months, payment at the end of each month PMT(.08/12, 10, 10000) = - $1, For the same loan, if payments are due at the beginning of the period PMT(.08/12, 10, 10000, 0, 1) = - $1,030.16

Saving Regularly - PMT Use PMT to determine how much to save each month to meet a specific goal Want to retire with one million dollars in 40 years Earn 10 % interest on your savings How much must you save each month? Keukenhof, The Netherlands

Retiring a Millionaire PMT(.10/12, 40*12, 0, ) = -$ Multiply the returned payment by nper to calculate how much is paid over the duration of the annuity $158.13*480 = $75,900 Note, the pv = 0 fv =

Statistical Functions in Excel

Statistical functions Excel has a wide variety of built-in statistics functions that give, the standard and mean deviation of a data sample, and the mean, median and mode of a set of values.

1. Average Function Returns the average (arithmetic mean) of the arguments. Syntax ::: AVERAGE(number1,number2,...) Number1, number2,... are 1 to N numeric arguments for which you want the average. Example ::: Data = 10,7,9,27,2 AVERAGE(A2:A6) Average of the numbers above (11) AVERAGE(A2:A6, 5) Average of the numbers above and 5 (10)

2. Median Function Returns the median of the given numbers. The median is the number in the middle of a set of numbers; that is, half the numbers have values that are greater than the median, and half have values that are less. Syntax ::: MEDIAN(number1,number2,...) Number1, number2,... are 1 to N numeric arguments for which you want the median. Example ::: Data = 1,2,3,4,5,6 MEDIAN(A2:A6) Median of the first 5 numbers in the list above (3) MEDIAN(A2:A7) Median of all the numbers above, or the average of 3 and 4 (3.5)

3. AVEDEV Function Returns the average of the absolute deviations of data points from their mean. AVEDEV is a measure of the variability in a data set. Syntax ::: AVEDEV(number1,number2,...) Number1, number2,... are 1 to 30 arguments for which you want the average of the absolute deviations. You can also use a single array or a reference to an array instead of arguments separated by commas. The equation : Example ::: Data = 4,5,6,7,5,4,3 AVEDEV(A2:A8) Average of the absolute deviations of the numbers above from their mean ( )

4. STEDEV Function Estimates standard deviation based on a sample. The standard deviation is a measure of how widely values are dispersed from the standard value. Syntax ::: STDEV(number1,number2,...) Number1, number2,... are 1 to 30 number arguments corresponding to a sample of a population. You can also use a single array or a reference to an array instead of arguments separated by commas. The equation:

Example ::: Suppose 10 tools stamped from the same machine during a production run are collected as a random sample and measured for breaking strength. The example may be easier to understand if you copy it to a blank worksheet. Data = 1345,1301,1368,1322,1310,1370, 1318,1350,1303,1299 STDEV(A2:A11)Standard deviation of breaking strength ( )

5. CORREL Function Returns the correlation coefficient of the array1 and array2 cell ranges. Use the correlation coefficient to determine the relationship between two properties. For example, you can examine the relationship between a location's average temperature and the use of air conditioners. Syntax ::: CORREL(array1,array2) Array1 is a cell range of values. Array2 is a second cell range of values. The equation :

Example ::: Suppose given two data sets regarding the population density & death rate of a particular area. Find the correlation between the two. DENSITY :: 300,200,400,500,600 DEATH RATE :: 9,7,12,14,16 CORREL(A2:A6,B2:B6) =

6. RANK Function Returns the rank of a number in a list of numbers. The rank of a number is its size relative to other values in a list. (If you were to sort the list, the rank of the number would be its position.) Syntax ::: RANK(number,ref,order) Number is the number whose rank you want to find. Ref is an array of, or a reference to, a list of numbers. Nonnumeric values in ref are ignored. Order is a number specifying how to rank number. If order is 0 (zero) or omitted, Microsoft Excel ranks number as if ref were a list sorted in descending order. If order is any nonzero value, Microsoft Excel ranks number as if ref were a list sorted in ascending order

Database Functions in Excel

Introduction In this information age, the major challenge for every organization is to keep proper database in order to prosper in the future. Databases are store-houses of information. Provides latest information. Database is an organized collection of related information about a particular subject or purpose. Information in database is stored in rows and columns Ms-Excel also contains a good database which is a collection of information that is organized so that it can easily be accessed, managed, and updated

What is a database? A database is a collection of logically related data designed to meet the information needs of one or more users A database defines a structure for storing information. Databases are typically organized into tables, which are collections of related items. You can think of a table as a grid of columns and rows. Egs Oracle, DB2, and SQL Server. A database is a collection of information that is organized so that it can easily be accessed, managed, and updatedinformation

Computer D a t a Hierarchy pyramid DB FILE TABLE RECORD FIELD DATA Bits and bytes Traditional databases are organized by fields, records,fieldsrecords and files. A field is a single piece of information;files a record is one complete set of fields; and a file is a collection of records.

To access information from a database, you need a database management system (DBMS). This is a collection of programs that enables you to enter, organize, and select data in a database.access database management system (DBMS) The following figure shows the basic layout of a database table:

1. DAVERAGE Function Averages the values in a column of a list or database that match conditions you specify. Syntax ::: DAVERAGE (database,field,criteria) Database is the range of cells that makes up the list or database. Field indicates which column is used in the function. Field can be given as text with the column label enclosed between double quotation marks, such as “-----” as a number that represents the position of the column within the list Criteria is the range of cells that contains the conditions you specify

2. DSUM Function Adds the numbers in a column of a list or database that match conditions you specify. Syntax ::: DSUM (database,field,criteria) Database is the range of cells that makes up the list or database. Field indicates which column is used in the function. Field can be given as text with the column label enclosed between double quotation marks, such as ”------” or as a number that represents the position of the column within the list Criteria is the range of cells that contains the conditions you specify

3. DMAX Function Returns the largest number in a column of a list or database that matches conditions you specify. Syntax ::: DMAX(database,field,criteria) Database is the range of cells that makes up the list or database. Field indicates which column is used in the function. Field can be given as text with the column label enclosed between double quotation marks, such as “-----” or as a number that represents the position of the column within the list Criteria is the range of cells that contains the conditions you specify

4. DMIN Function Returns the largest number in a column of a list or database that matches conditions you specify. Syntax ::: DMIN(database,field,criteria) Database is the range of cells that makes up the list or database. Field indicates which column is used in the function. Field can be given as text with the column label enclosed between double quotation marks, such as “-----” or as a number that represents the position of the column within the list Criteria is the range of cells that contains the conditions you specify