The answer depends on if you want depreciation calculated based on the number of days in each period or equally for each period of the year.
Financial>Setup>Fixed Assets>Book
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Depreciation Period
Select the depreciation period. A yearly depreciation rate is calculated for each asset at the beginning of each year.
Daily depreciation results in the yearly rate being allocated based on the number of days in a period. For companies using accounting periods of 4-week, 4-week, 5-week quarters, daily should be used. Periods that are longer will receive more depreciation.
Periodic depreciation results in the yearly rate being allocated equally for each period in the year.
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