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Forecast Icome

 
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cribragoofalo
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Joined: 11 Nov 2007
Posts: 5
Location: Fiji

PostPosted: Wed Jun 18, 2008 12:40 pm    Post subject: Forecast Icome Reply with quote

If you want to Forecast out your income based on prior year month's income do the following:
Code:
     B       C               D
   year   period (jan)   income      year   period (feb)   income
   2001   1              $100.00       2001   1              $150.00
   2002   2              $123.00       2002   2               $134.00
   2003   3              $99.00        2003   3               $178.00
   2004   4              $132.00       2004   4               $160.00
Forcast>>   2005   5    $131.50       2005   5              $174.00
Forcast>>   2006   6    $130.15       2006   6              $176.80
Forcast>>   2007   7    $127.81       2007   7              $172.72
Forcast>>   2008   8    $131.06       2008   8              $168.83

The cell formulas are as follows for the forcasted dollar amounts for the specific periods for Jan:
Code:
5=FORECAST(5,D2:D5,C2:C5)
6=FORECAST(6,D3:D6,C3:C6)
7=FORECAST(7,D4:D7,C4:C7)
8=FORECAST(8,D5:D8,C5:C8)


The first number 5 is askaing for the income for the 5th data point (2005 in this example), then 6 is asking for the 6th data point (2006) etc.

Think of a "trend" chart and each income value being plotted and we are forcasting the next point.
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