cost: initial cost of asset
purchase_date: date of purchase
first_period: end of first period
salvage: value after depreciation
period: subject period
rate: depreciation rate
basis: calendar basis
AMORLINC calculates the depreciation of an asset using French accounting conventions. Assets purchased in the middle of a period take prorated depreciation into account.
Named for AMORtissement LINeaire Comptabilite. If basis is 0, then the US 30/360 method is used. If basis is 1, then actual number of days is used. If basis is 2, then actual number of days is used within a month, but years are considered only 360 days. If basis is 3, then actual number of days is used within a month, but years are always considered 365 days. If basis is 4, then the European 30/360 method is used.