In the previous example, where
the average retailer stocks only about 7 TVs, retailers and
suppliers need to prioritize which models should be listed. The Sales per
Point of Weighted Distribution (SPPD) is one of a number of metrics that
helps you to do that. It is simply a ratio of sales (units or volume or value) divided
by weighted distribution.
Sales per Point of Weighted Distribution (SPPD):
$$ \frac{Volume \,Sales}{Wtd \,Distribution} \,\,\, or \,\,\, \frac{Value \,Sales}{Wtd \,Distribution}$$
For example if a brand sells 10,000 kg and
its weighted distribution is 80%, then:
$$SPPD = \frac{10,000}{80} = 125kg $$