Calculate repeat sales

y3kesprit

Board Regular
Joined
Mar 23, 2010
Messages
133
Hi guys,

I am running a table to estimate the amount of sales I can generate.

JanFebMarAprMayJune
Unit Sold in current month101214161820
Unit Sold from previous monthsX
Unit Price ($)444444

<tbody>
</tbody>

The 2nd row is where I am struggling.

I am looking for a formula that allows me to apply a different % to the sales generated in previous months based on some assumptions I have. This will provide an estimate of sales that are generated as repeat sales through earlier months' customers.

For e.g., under the June column, where n = current month:

Cell "X" will be the sum of the below lines:
n-1: 60% (60% * 18 per May)
n-2: 55% (55% * 16 per Apr)
n-3: 50% (50% * 14 per Mar)
n-4: 45% (45% * 12 per Feb)
n-5: 40% (40% * 12 per Jan)

I am intending to build a two year view. Thus there will be 23 lines in the above table, although my intention is that n-6 onwards will be 20% flat.

Appreciate some guidance here, thanks!
 
Last edited:

Excel Facts

How to total the visible cells?
From the first blank cell below a filtered data set, press Alt+=. Instead of SUM, you will get SUBTOTAL(9,)
Hi,

In cell G5 ... you could test :

=(OFFSET(G5,-1,-5)*0.4)+(OFFSET(G5,-1,-4)*0.45)+(OFFSET(G5,-1,-3)*0.5)+(OFFSET(G5,-1,-2)*0.55)+(OFFSET(G5,-1,15)*0.6)

Hope this will help
 
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