Depreciation

AMORDEGRC	Returns the depreciation of an asset in a single period.
AMORLINC	Returns the depreciation of an asset in a single period.
DB	Returns the depreciation of an asset in a single period (declining balance method).
DDB	Returns the depreciation of an asset in a single period (double or triple declining balance method).
SLN	Returns the straight-line depreciation of an asset for one period.
SYD	Returns the depreciation of an asset using the sum of years method.
VDB	Returns the depreciation of an asset using a variable declining method.