Creating Depreciation Formula and having trouble

R

rwilliams09

New Member
Joined
Jun 18, 2017
Messages
48
So lets imagine I have in cells from left to right a bunch of numbers (let's call them investments).

Then below that I have another row showing (also from left to right) 10% of only the previous 10 years (in this case I will want the 10 previous cells from the right to the left of the row above).

Does anyone know how to do this? I am really struggling.
 

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[TD]year[/TD]
[TD="colspan: 2"]investment[/TD]
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[TD="colspan: 2"]problem statement[/TD]
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[TD="align: right"]1000[/TD]
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[TD="align: right"]2[/TD]
[TD="align: right"]1500[/TD]
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[TD="colspan: 5"]determine 10% of only the last 3 years totals[/TD]
[TD="align: right"]3[/TD]
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[TD="align: right"]2500[/TD]
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[TD="colspan: 3"]how many years in total[/TD]
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[TD="align: right"]5[/TD]
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[TD="colspan: 3"]starting year for calculation[/TD]
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[TD="align: right"]3[/TD]
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[TD]5-3+1[/TD]
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[TD="colspan: 3"]investment in last 3 years[/TD]
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[TD="align: right"]7500[/TD]
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[TD="class: xl24, align: right"]10%[/TD]
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[TD="align: right"]750[/TD]
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[TD="colspan: 2"]7500 obtained by[/TD]
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[TD="colspan: 5"]=SUMPRODUCT(($B$5:$B$9>=$L$10)*($C$5:$C$9))[/TD]
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Upvote 0
Thank you very much!

I think this is a little different from what I am looking for... I want to drag the same formula across about 30 cells within a row (I am using rows, not columns).
 
Last edited:
Upvote 0
[TABLE="width: 1152"]
<colgroup><col width="64" span="18" style="width:48pt"> </colgroup><tbody>[TR]
[TD="width: 64, align: right"]2001[/TD]
[TD="width: 64, align: right"]2002[/TD]
[TD="width: 64, align: right"]2003[/TD]
[TD="width: 64, align: right"]2004[/TD]
[TD="width: 64, align: right"]2005[/TD]
[TD="width: 64, align: right"]2006[/TD]
[TD="width: 64, align: right"]2007[/TD]
[TD="width: 64, align: right"]2008[/TD]
[TD="width: 64, align: right"]2009[/TD]
[TD="width: 64, align: right"]2010[/TD]
[TD="width: 64, align: right"]2011[/TD]
[TD="width: 64, align: right"]2012[/TD]
[TD="width: 64, align: right"]2013[/TD]
[TD="width: 64, align: right"]2014[/TD]
[TD="width: 64, align: right"]2015[/TD]
[TD="width: 64, align: right"]2016[/TD]
[TD="width: 64, align: right"]2017[/TD]
[TD="width: 64"][/TD]
[/TR]
[TR]
[TD="align: right"]5000[/TD]
[TD="align: right"]5100[/TD]
[TD="align: right"]5200[/TD]
[TD="align: right"]5300[/TD]
[TD="align: right"]5400[/TD]
[TD="align: right"]5500[/TD]
[TD="align: right"]5600[/TD]
[TD="align: right"]5700[/TD]
[TD="align: right"]5800[/TD]
[TD="align: right"]5900[/TD]
[TD="align: right"]6000[/TD]
[TD="align: right"]6100[/TD]
[TD="align: right"]6200[/TD]
[TD="align: right"]6300[/TD]
[TD="align: right"]6400[/TD]
[TD="align: right"]6500[/TD]
[TD="align: right"]6600[/TD]
[TD][/TD]
[/TR]
[TR]
[TD][/TD]
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[TD][/TD]
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[TD][/TD]
[TD][/TD]
[TD="align: right"]5450[/TD]
[TD="align: right"]5550[/TD]
[TD="align: right"]5650[/TD]
[TD="align: right"]5750[/TD]
[TD="align: right"]5850[/TD]
[TD="align: right"]5950[/TD]
[TD="align: right"]6050[/TD]
[TD="align: right"]6150[/TD]
[TD][/TD]
[/TR]
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[TD="colspan: 2"]5450 obtained by[/TD]
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[/TR]
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[TD="colspan: 2"]=SUM(A2:J2)/10[/TD]
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[/TR]
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[TD="colspan: 2"]dragged right[/TD]
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[/TR]
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[/TR]
</tbody>[/TABLE]
 
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