"november678x"
wrote in message
news:november678x.27lowz_1147279503.7596@excelforu m-nospam.com...

Hello to all,

Does anyone know how I can forecast the 4th quarter amount for the data
below? I tried using the linear trend on my chart and selected 3 future
periods under the trend line options. This showed me a future trend but
it did not display what the totals will be. Any help would be
appreciated.

Thank you :)


Q1 - 2500

Q2 - 2350

Q3 - 2475

Q4 - ?

Use the LINEST() function, which will calculate the parameters of your
y=mx+c linear fit. Having calculated the parameters, you can then evaluate
the value of y for any x. In your case, for Q4, y comes to 2416.667. [You
can of course plot this, to show it agrees with the trend line that Excel
plotted for you.]
--
David Biddulph