# WorksheetFunction.Db Method (Excel)

Office 2010

Returns the depreciation of an asset for a specified period using the fixed-declining balance method.

## Syntax

expression .Db(Arg1, Arg2, Arg3, Arg4, Arg5)

expression A variable that represents a WorksheetFunction object.

### Parameters

Name

Required/Optional

Data Type

Description

Arg1

Required

Double

Cost - the initial cost of the asset.

Arg2

Required

Double

Salvage - the value at the end of the depreciation (sometimes called the salvage value of the asset).

Arg3

Required

Double

Life - the number of periods over which the asset is being depreciated (sometimes called the useful life of the asset).

Arg4

Required

Double

Period - the period for which you want to calculate the depreciation. Period must use the same units as life.

Arg5

Optional

Variant

Month - the number of months in the first year. If month is omitted, it is assumed to be 12.

Double

## Remarks

• The fixed-declining balance method computes depreciation at a fixed rate. DB uses the following formulas to calculate depreciation for a period: (cost - total depreciation from prior periods) * rate where: rate = 1 - ((salvage / cost) ^ (1 / life)), rounded to three decimal places

• Depreciation for the first and last periods is a special case. For the first period, DB uses this formula: cost * rate * month / 12

• For the last period, DB uses this formula: ((cost - total depreciation from prior periods) * rate * (12 - month)) / 12