Report Writing

You are asking me an impossible question because it really depends on the whole question and the exact wording of the requirements. As far as the assumptions you have stated, you would normally be expected to explain why the growth cannot be estimated with accuracy, how you would go about determining a reasonable PE to use, and what other methods might we might in practice want to use. With regard to breaking up the marks, again it depends too much on the actual question. Look at the marking schemes provided by the examiner (on the last page of all the exam answers) and you will see how the marks are being allocated.