consolidation account

Have you watched the free lecture here on the Consolidated Statement of profit or loss? It is explained there.

i watch but couldn`t understand, i want to get an model answer please

The model answer is on the ACCA website - it is the same file as the specimen paper.

i look @ it but i could not understand

You said before that you wanted a model answer. I have told you where it is, but now you say that you have looked at it! If you say which part is causing a problem then I will try to help you. If you have really watched the lecture on this website, then you should not find most of it any problem.

for cost of sales how we get the adjustments valve $1500? and how do we get the value of unrealised profit?

During the year Keswick sold Derwent goods for $1,500. So 1,500 will be included in Keswick's revenue in their accounts, and 1,500 will be included in Derwent's cost of sales in their accounts. For the consolidated Statement of profit or loss, we only want to show sales outside the group and costs outside the group, so we need to subtract 1,500 from the total sales and also from the total cost of sales. (this adjustment has no effect on the final profit). However, the total profit would still include the 500 (1500 - 1000) profit that Keswick made on the sale to Derwent. This would be fine if all of the goods had then been sold outside the group. But 30% of the goods are still in inventory and therefore have not been sold outside the group. So the unrealised profit is 30% x 500 = 150. This needs removing from the total profit and we do this by increasing the cost of sales by 150.