Bramble, Inc. buys 1,000 computer game CDs from a distributor who is discontinuing those games. The purchase price for the lot is $11,500. Bramble will group the CDs into three price categories for resale, as indicated below.


Group No. of CDs Price per CD
1 100 $5
2 800 10
3 100 15

Determine the cost per CD for each group, using the relative sales value method.