[ic] dealer price based on previous sales of like and similar items

[David Etheredge]

Anyone have a suggestion as to how I can find the quantity of several
different items purchased by a customer in the last 12 months and calculate
a price based on that quantity.

item0001 or item0002 or item0005 or item0007 price based on combined
quantity of these 4 items

item0003 or item0004 or item0006 or item0008 price based on combined
quantity of these 4 items


Yeah, I know, I don't as a lot ... ouch!

Thanks,
Dave