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Subtantive procedures for purchases

Forums › ACCA Forums › ACCA AA Audit and Assurance Forums › Subtantive procedures for purchases

  • This topic has 1 reply, 2 voices, and was last updated 7 years ago by Kim Smith.
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  • May 27, 2018 at 8:52 am #454192
    vitfin
    Member
    • Topics: 3
    • Replies: 1
    • ☆

    Hi guy!!

    I have done the Sample question Dec 2017 for F8. One of the answers for the subtantive procedures is:

    “Calculate the operating profit and gross profit margins and compare them to last year and budget and investigate any significant differences.”

    – Can you explain to me how we use these 2 ratios to analyze, the relation between the ratios and purchases?
    – It will acertain for the completeness assertion, right?

    Thanks so much!!

    May 29, 2018 at 10:57 am #454596
    Kim Smith
    Keymaster
    • Topics: 138
    • Replies: 8443
    • ☆☆☆☆☆

    Not just completeness but also accuracy and allocation (classification) – if GP% is quite predictable/stable in an industry, that it doesn’t fluctuate would give some comfort that it is accurate. If GP% is up and OP% is down (or vice versa), part of the investigation would be to consider whether there has been a change of classification of a cost (e.g. between cost of sales and distribution) or material misposting(s).

    When comparing GP% remember that cost of sales is opening inventory + purchases – closing inventory. So a fall in GP% shouldn’t be attributed to an increase in purchases if the goods haven’t yet been sold but are sitting in inventory (you would expect a corresponding increase in inventory days).

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