2. INTRODUCTION
Value = Volume x Price
4 things that can affect value change Y-O-Y
1. Loss in volume due to discontinued SKUs
2. Gain/loss due to change in volume of existing SKUs =
ViPi)
where
Vi is the change in volume sold over previous year.
This could be a positive or negative change and the product shall
assume the sign accordingly
Pi is the average price of each SKU
3. Gain/loss due to change in average price of existing SKUs
4. Gain in volume due to introduction of new SKUs
If price bands are to be considered and value is to be analyzed at
each price band, change in average price needs to be checked for a
corresponding shift of the SKU from one price band to another
3. METHODOLOGY
2006
2007
2008
2009
2010
A1,1
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Ai,j
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Am,n
Where Ai,j is the number of units of ith SKU sold in jth year
To see which SKUs were introduced in 2007, select everything from 2007
and select blanks from 2006
To see which SKUs were discontinued in 2007, select all from 2006 and
select blanks from 2007
To see which SKUs were continued across both years, deselect blank in
both 2006 and 2007