A consignment consisted of two chemicals A and B. The invoice gave the following data:

Chemical A 4,000 kgs. @ Rs.2.50 per/kg.

10,000

Chemical B 3,200 kgs. @ Rs.3.25 per/kg.

10,400

Sales Tax

816

Railway Freight

384

Total cost

21,600

A shortage of 200 kgs. in A and 128 kgs. in B was noticed due to breakage.

What is the stock rate you would adopt for pricing issues assuming a provision of 5% towards further deterioration?