To do this calculation in excel, Type =SLN(cost, salvage, life) into a cell, and press enter. 5, Edit the information in columns B through G. See the link above for more information about using this template.Fundamentals of spreadsheet applications using Microsoft Excel. Learn the formulas and definitions of each depreciation method, Excel makes it easy with the SLN, DB, DDB, SYD and VDB functions. Enter the current fiscal year in YYYY format (e.g. 2022). Enter the name of the individual asset or group of assets being depreciated (e.g. In this movie I'll show you how to use the syd function to calculate the sum of years depreciation value for a given year.