Difference between revisions of "Documentation/How Tos/Calc: XNPV function"
From Apache OpenOffice Wiki
< Documentation | How Tos
OOoWikiBot (Talk | contribs) m (Robot: Automated text replacement %s) |
m |
||
Line 24: | Line 24: | ||
<tt>'''XNPV(5%; B2:B4; C2:C4)'''</tt> | <tt>'''XNPV(5%; B2:B4; C2:C4)'''</tt> | ||
: where B2:B4 contains 0, 500, 550 and C2:C4 contains the dates 2008-01-01, 2009-01-01, 2009-07-01, returns approximately <tt>'''987.35'''</tt>, the net present value on 2008-01-01 of an investment which paid 500 on 2009-01-01 and 550 on 2009-07-01, using a 5% interest rate. | : where B2:B4 contains 0, 500, 550 and C2:C4 contains the dates 2008-01-01, 2009-01-01, 2009-07-01, returns approximately <tt>'''987.35'''</tt>, the net present value on 2008-01-01 of an investment which paid 500 on 2009-01-01 and 550 on 2009-07-01, using a 5% interest rate. | ||
+ | |||
+ | === Issues: === | ||
+ | * The calculation is based on a 365 day year, even in a leap year, using actual days difference. There are other ways to calculate net present value. | ||
{{Documentation/SeeAlso| | {{Documentation/SeeAlso| | ||
Line 33: | Line 36: | ||
* [[Documentation/How_Tos/Calc: Functions listed alphabetically|Functions listed alphabetically]] | * [[Documentation/How_Tos/Calc: Functions listed alphabetically|Functions listed alphabetically]] | ||
* [[Documentation/How_Tos/Calc: Functions listed by category|Functions listed by category]]}} | * [[Documentation/How_Tos/Calc: Functions listed by category|Functions listed by category]]}} | ||
− | |||
− | |||
− |
Revision as of 08:50, 3 March 2009
XNPV
Returns the net present value of an investment with irregular cash payments.
Syntax:
XNPV(rate; payments; dates)
- rate is the annual interest rate.
- payments is a range or array containing payments made, positive if paid to you, negative if you pay.
- dates is a range or array containing the dates on which those payments are made.
- XNPV calculates a net present value on the first date given (date0), using the formula:
- The calculation assumes a 365 day year, even in a leap year.
Example:
XNPV(5%; B2:B4; C2:C4)
- where B2:B4 contains -1000, 500, 550 and C2:C4 contains the dates 2008-01-01, 2009-01-01, 2009-07-01, returns approximately -12.65. If you bought an investment for 1000 on 2008-01-01 which paid 500 on 2009-01-01 and 550 on 2009-07-01 you'd make a small loss, compared to investing at a 5% interest rate.
XNPV(5%; B2:B4; C2:C4)
- where B2:B4 contains 0, 500, 550 and C2:C4 contains the dates 2008-01-01, 2009-01-01, 2009-07-01, returns approximately 987.35, the net present value on 2008-01-01 of an investment which paid 500 on 2009-01-01 and 550 on 2009-07-01, using a 5% interest rate.
Issues:
- The calculation is based on a 365 day year, even in a leap year, using actual days difference. There are other ways to calculate net present value.