SYD function
This article describes the formula syntax and usage of the SYDfunction in Microsoft Excel.
Description
Returns the sumofyears' digits depreciation of an asset for a specified period.
Syntax
SYD(cost, salvage, life, per)
The SYD function syntax has the following arguments:

Cost Required. The initial cost of the asset.

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

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

Per Required. The period and must use the same units as life.
Remarks
SYD is calculated as follows:
Example
The example may be easier to understand if you copy it to a blank worksheet.
How do I copy an example?

Select the example in this article.
Important Do not select the row or column headers.
Selecting an example from Help

Press CTRL+C.

In Excel, create a blank workbook or worksheet.

In the worksheet, select cell A1, and press CTRL+V.
Important For the example to work properly, you must paste it into cell A1 of the worksheet.

To switch between viewing the results and viewing the formulas that return the results, press CTRL+` (grave accent), or on the Formulas tab, in the Formula Auditing group, click the Show Formulas button.
After you copy the example to a blank worksheet, you can adapt it to suit your needs.

