HP 30b Business Professional Calculator - Manual (Page 74)

Depreciation 66
The Depreciation Menu
Press
:\
to open the Depreciation menu. To select a depreciation method, press
I
. See Figure 1. Input the values required for the calculation:
• Asset life
• Starting date or month of the depreciation
• Cost and salvage values
• Declining balance factor (DecBal and DBXover only)
• The first year for which you want to view the depreciation schedule
Scroll through the items of the sub-menu for the selected depreciation method by pressing
<
or
>
repeatedly. To change the value of the displayed item, key in a number and
press
I
. For the Start item, enter either a number or an actual date, depending on
the type of depreciation selected. Press
<
repeatedly to view the depreciation schedule.
NOTE: pressing
<
on the last item of a sub-menu returns you to the Year item and
increments it (see Figure 1).
Brief descriptions of the methods used to calculate depreciation are provided in Table 11-1.
Table 11-2 describes the items found in the depreciation sub-menus. For an example
calculating depreciation using the straight-line method, see Table 11-3.
Table 11-1 Depreciation Methods
Depreciation Method Description
Sline Straight line is a method of calculating depreciation presuming an asset loses a
certain percentage of its value annually at an amount evenly distributed
throughout its useful life.
SOYD Sum-of-the-years' digits is an accelerated depreciation method.
In SOYD, the depreciation in year y is (Life-y +1)/SOY of the asset, where SOY is
the sum-of-the-years for the asset, or, for an asset with a 5-year life,
5+4+3+2+1=15.
DecBal Declining balance is an accelerated depreciation method that presumes an
asset will lose the majority of its value during the first few years of its useful life.
DBXover Declining balance crossover is an accelerated depreciation method that
presumes an asset will lose the majority of its value in the first few years of its
useful life, but that it will revert to a consistent depreciation during the latter part
of its life, which is then calculated using the straight line method.
French SL Straight line French. This method of depreciation is similar to the Straight line
method, except an actual calendar date in mm.dd format is entered in for
Start= to indicate when the asset was first placed into service.
Amort F French amortization. This method is an accelerated depreciation method with a
crossover to the French Straight Line method.