Elounda Co manufactures chemical compounds using a continuous production process. Its year end was 31 July 20X6 and the draft profit before tax is $13·6 million. You are the audit supervisor and the year-end audit is due to commence shortly. The following matters have been brought to your attention.

(i) Revaluation of property, plant and equipment (PPE)
At the beginning of the year, management undertook an extensive review of Elounda Co’s non-current asset valuations and as a result decided to update the carrying value of all PPE. The finance director, Peter Dullman, contacted his brother, Martin, who is a valuer and requested that Martin’s firm undertake the valuation, which took place in August 20X5. (5 marks)

Required:
(a) Describe substantive procedures you should perform to obtain sufficient, appropriate audit evidence in relation to the above three matters.

Note: The mark allocation is shown against each of the three matters above.