Difference between revisions of "Documentation/How Tos/Calc: DDB function"
From Apache OpenOffice Wiki
< Documentation | How Tos
m |
Javier Lopez (Talk | contribs) |
||
Line 1: | Line 1: | ||
− | + | {{Documentation/MasterTOC | |
+ | |bookid=1234''' | ||
+ | |booktitle=<div style="padding: 8px; font-size: 140%; font-weight: bold; background-color: #9BC0F5;">CALC FUNCTIONS</div> | ||
+ | |ShowParttitle=block|parttitle=[[Documentation/How_Tos/Calc:_Financial_functions|<div style="font-size: 140%;">Financial Functions]] | ||
+ | |ShowNextPage=block|NextPage=Documentation/How_Tos/Calc:_SLN_function | ||
+ | |ShowPrevPage=block|PrevPage=Documentation/How_Tos/Calc:_DB_function | ||
+ | |ShowPrevPart=block|PrevPart=Documentation/How_Tos/Calc:_Date_%26_Time_functions | ||
+ | |ShowNextPart=block|NextPart=Documentation/How_Tos/Calc:_Information_functions | ||
+ | |toccontent= <div style="padding: 4px; font-size: 130%; font-weight: hidden; background-color:#DCE9FC;">FUNCTIONS</div> | ||
+ | |||
+ | <div style="font-size: 140%; border-style: outset outset outset none; border-color:#DCE9FC;">Depreciation</div> | ||
+ | * [[Documentation/How_Tos/Calc:_AMORDEGRC_function|<div style="font-size: 120%;">Amordegrc]] | ||
+ | * [[Documentation/How_Tos/Calc:_AMORLINC_function|<div style="font-size: 120%;">Amorlinc]] | ||
+ | * [[Documentation/How_Tos/Calc:_DB_function|<div style="font-size: 120%;">Db]] | ||
+ | * [[Documentation/How_Tos/Calc:_DDB_function|<div style="font-size: 120%; border-style: double; border-color:#778899;">Ddb]] | ||
+ | * [[Documentation/How_Tos/Calc:_SLN_function|<div style="font-size: 120%;">Sln]] | ||
+ | * [[Documentation/How_Tos/Calc:_SYD_function|<div style="font-size: 120%;">Syd]] | ||
+ | * [[Documentation/How_Tos/Calc:_VDB_function|<div style="font-size: 120%;">Vdb]] | ||
+ | |||
+ | <div style="font-size: 140%; border-style: outset outset outset none; border-color:#DCE9FC;">Payment Streams, Annuities, Loans</div> | ||
+ | * [[Documentation/How_Tos/Calc:_CUMIPMT_function|<div style="font-size: 120%;">Cumipmt]] | ||
+ | * [[Documentation/How_Tos/Calc:_CUMIPMT_ADD_function|<div style="font-size: 120%;">Cumipmt Add]] | ||
+ | * [[Documentation/How_Tos/Calc:_CUMPRINC_function|<div style="font-size: 120%;">Cumprinc]] | ||
+ | * [[Documentation/How_Tos/Calc:_CUMPRINC_ADD_function|<div style="font-size: 120%;">Cumpinc Add]] | ||
+ | * [[Documentation/How_Tos/Calc:_FV_function|<div style="font-size: 120%;">Fv]] | ||
+ | * [[Documentation/How_Tos/Calc:_FVSCHEDULE_function|<div style="font-size: 120%;">Fvschedule]] | ||
+ | * [[Documentation/How_Tos/Calc:_IPMT_function|<div style="font-size: 120%;">Ipmt]] | ||
+ | * [[Documentation/How_Tos/Calc:_IRR_function|<div style="font-size: 120%;">Irr]] | ||
+ | * [[Documentation/How_Tos/Calc:_ISPMT_function|<div style="font-size: 120%;">Ispmt]] | ||
+ | * [[Documentation/How_Tos/Calc:_MIRR_function|<div style="font-size: 120%;">Mirr]] | ||
+ | * [[Documentation/How_Tos/Calc:_NPER_function|<div style="font-size: 120%;">Nper]] | ||
+ | * [[Documentation/How_Tos/Calc:_NPV_function|<div style="font-size: 120%;">Npv]] | ||
+ | * [[Documentation/How_Tos/Calc:_PMT_function|<div style="font-size: 120%;">Pmt]] | ||
+ | * [[Documentation/How_Tos/Calc:_PPMT_function|<div style="font-size: 120%;">Ppmt]] | ||
+ | * [[Documentation/How_Tos/Calc:_PV_function|<div style="font-size: 120%;">Pv]] | ||
+ | * [[Documentation/How_Tos/Calc:_RATE_function|<div style="font-size: 120%;">Rate]] | ||
+ | * [[Documentation/How_Tos/Calc:_RRI_function|<div style="font-size: 120%;">Rri]] | ||
+ | * [[Documentation/How_Tos/Calc:_XIRR_function|<div style="font-size: 120%;">Xirr]] | ||
+ | * [[Documentation/How_Tos/Calc:_XNPV_function|<div style="font-size: 120%;">Xnpv]] | ||
+ | |||
+ | <div style="font-size: 140%; border-style: outset outset outset none; border-color:#DCE9FC;">Securities</div> | ||
+ | * [[Documentation/How_Tos/Calc:_ACCRINT_function|<div style="font-size: 120%;">Accrint]] | ||
+ | * [[Documentation/How_Tos/Calc:_ACCRINTM_function|<div style="font-size: 120%;">Accrintm]] | ||
+ | * [[Documentation/How_Tos/Calc:_DISC_function|<div style="font-size: 120%;">Disc]] | ||
+ | * [[Documentation/How_Tos/Calc:_DURATION_function|<div style="font-size: 120%;">Duration]] | ||
+ | * [[Documentation/How_Tos/Calc:_DURATION_ADD_function|<div style="font-size: 120%;">Duration Add]] | ||
+ | * [[Documentation/How_Tos/Calc:_EFFECTIVE_function|<div style="font-size: 120%;">Effective]] | ||
+ | * [[Documentation/How_Tos/Calc:_EFFECT_ADD_function|<div style="font-size: 120%;">Effect Add]] | ||
+ | * [[Documentation/How_Tos/Calc:_INTRATE_function|<div style="font-size: 120%;">Intrate]] | ||
+ | * [[Documentation/How_Tos/Calc:_MDURATION_function|<div style="font-size: 120%;">Mduration]] | ||
+ | * [[Documentation/How_Tos/Calc:_DURATION_ADD_function|<div style="font-size: 120%;">Duration Add]] | ||
+ | * [[Documentation/How_Tos/Calc:_NOMINAL_function|<div style="font-size: 120%;">Nominal]] | ||
+ | * [[Documentation/How_Tos/Calc:_NOMINAL_ADD_function|<div style="font-size: 120%;">Nominal Add]] | ||
+ | * [[Documentation/How_Tos/Calc:_ODDFPRICE_function|<div style="font-size: 120%;">Oddfprice]] | ||
+ | * [[Documentation/How_Tos/Calc:_ODDFYIELD_function|<div style="font-size: 120%;">Oddfyield]] | ||
+ | |||
+ | <div style="font-size: 140%; border-style: outset outset outset none; border-color:#DCE9FC;">Coupons</div> | ||
+ | * [[Documentation/How_Tos/Calc:_COUPDAYBS_function|<div style="font-size: 120%;">Coupdaybs]] | ||
+ | * [[Documentation/How_Tos/Calc:_COUPDAYS_function|<div style="font-size: 120%;">Coupdays]] | ||
+ | * [[Documentation/How_Tos/Calc:_COUPDAYSNC_function|<div style="font-size: 120%;">Coupdaysnc]] | ||
+ | * [[Documentation/How_Tos/Calc:_COUPNCD_function|<div style="font-size: 120%;">Coupncd]] | ||
+ | * [[Documentation/How_Tos/Calc:_COUPNUM_function|<div style="font-size: 120%;">Coupnum]] | ||
+ | * [[Documentation/How_Tos/Calc:_COUPPCD_function|<div style="font-size: 120%;">Couppcd]] | ||
+ | |||
+ | <div style="font-size: 140%; border-style: outset outset outset none; border-color:#DCE9FC;">Miscellaneous</div> | ||
+ | |||
+ | * [[Documentation/How_Tos/Calc:_DOLLARDE_function|<div style="font-size: 120%;">Coupdaybs]] | ||
+ | * [[Documentation/How_Tos/Calc:_DOLLARFR_function|<div style="font-size: 120%;">Coupdays]] | ||
+ | }}__TOC__ | ||
== DDB == | == DDB == |
Revision as of 04:08, 14 May 2013
CALC FUNCTIONS
- Financial FunctionsDepreciation
- AmordegrcAmorlincDbDdbSlnSydVdbPayment Streams, Annuities, Loans
- CumipmtCumipmt AddCumprincCumpinc AddFvFvscheduleIpmtIrrIspmtMirrNperNpvPmtPpmtPvRateRriXirrXnpvSecurities
- AccrintAccrintmDiscDurationDuration AddEffectiveEffect AddIntrateMdurationDuration AddNominalNominal AddOddfpriceOddfyieldCoupons
- CoupdaybsCoupdaysCoupdaysncCoupncdCoupnum
Contents
DDB
Returns the depreciation of an asset for a given year using the double (or other factor) declining-balance method.
Syntax:
DDB(originalcost; salvagevalue; lifetime; year; factor)
- originalcost: the initial cost of the asset.
- salvagevalue: is the value at the end of the depreciation (sometimes called the salvage value of the asset).
- lifetime: the number of years over which the asset is being depreciated.
- year: the year number for which the depreciation is calculated.
- factor: the factor to set the depreciation rate (2 if omitted).
- To calculate depreciation, DDB uses a fixed rate. When factor = 2 this is the double-declining-balance method (because it is double the straight-line rate that would depreciate the asset to zero). The rate is given by:
- rate = factor / lifetime.
- The depreciation each year is calculated as
- MINIMUM( book_value_at_start_of_year * rate; book_value_at_start_of_year - salvagevalue )
- Thus the asset depreciates at rate until the book value is salvagevalue.
Example:
DDB(12000; 3000; 5; 1)
- returns 4800 in currency units. The rate is 2/5, or 40%. The book value at the start of year 1 is 12000, and 40% of 12000 is 4800.
DDB(12000; 3000; 5; 2)
- returns 2880 in currency units. The book value at the start of year 2 is 12000 - 4800 = 7200, and 40% of 7200 is 2880.
DDB(12000; 3000; 5; 3)
- returns 1320 in currency units. The book value at the start of year 3 is 7200 - 2880 = 4320; and 40% of 4320 is 1728 - but DDB returns only enough depreciation to reduce the book value to the salvage value - that is 4320 - 3000 = 1320.
DDB(12000; 3000; 5; 4)
- returns 0 in currency units. The book value at the start of year 4 is equal to the salvage value; no further depreciation is possible.
Issues:
- Note that this method may not depreciate the asset fully to its salvage value. For example, DDB(1000; 0; 3; 1) + DDB(1000; 0; 3; 2) + DDB(1000; 0; 3; 3) = 962.96, leaving a residual value of 37.04 instead of 0. The VDB function is an alternative which overcomes this.
Template:Documentation/SeeAlso
-