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  1. avatar says

    hai john im syahirah from malaysia .My questions is about the high low method .
    last few day before enter into my exam , when i’m doing my revision , there has a question that confusing me .

    says : total cost : $135,000 $ 170,000
    Activity level : 16,000 22,000
    Variable costs p/u is constant within this range of activity but there is a step up of $5,000 in the total fixed cost when the activity level exceeds 17500 units .

    Q:what is the total cost at an activity level of 20,000 units ?

    my calculation is i will :$170k – $5k -$135k = $30k
    : 22k units – 16k units = 6k
    Variable cost : $5 p/u
    Fixed cost : $165k – ($5k x 16k)
    = $85,000
    thus : y = a + bx $85,000 + (20k x $5 ) = $185,000
    but my answer is wrong and the correct answer was $160,000 .

    can you please explain to me further why my calculation on fixed cost wrong ?
    actually ,which cost that i should take either after minus up the step-up cost of $5,000 ($165,000) or including the step-up cost ($170,000) ?

    thanks sir . =)

    • Avatar of John Moffat says

      You calculation of the fixed cost is wrong. It should be 135000 – (16000 x 5) = 55000

      Having got the variable cost as $5, the quickest way to get the answer is just to say that the only difference between the total cost at 22000 and at 20000 is the variable cost if the extra 2000 units.

      So the total cost will be 170000 – (2000 x 5)

  2. avatar says

    In case the initial cash outflow is not recovered over the life of the project which has some scrap value, then should we consider the cash inflow from scrap in our calculation for payback period

  3. Avatar of Javeria says

    Hello John, i have a question after watching this lecture and practicing i was doing the test given in the notes on page 119 the question 2 requires IRR which can be calculated only if there are two percentages given, in the answers given at the end it says you did it with 20% where did u get that 20% please help ……

    • Avatar of John Moffat says

      The present value is not 100,000!
      100,000 is the initial cost of the project.

      We calculate the present value of each year so that we can calculate how many years it takes to get back 100,000 (for the discounted payback period).

  4. avatar says

    I cant get the question 2 in test for this chapter, please help. How i supposed to know what percentage i need to work out to compare it with 12% and NPV 33830.

    Also Im getting 3.34 in question 4 which is C and not D as its on the back.

    Many thanks in advance

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