Home For AAT student members AQ 2013 AAT Level 3 (Level 6 in Scotland)

Chapter 12 Marginal Costing: Task 2

Danielle MiltonDanielle Milton Settling In NicelyRegistered Posts: 23

I'm getting ready for my exam and task 2 on page 215 of the costing book is confusing me. I need work out the variable overhead and in the book it says (120,000/24,000) *2. Now I understand the formula but I cannot figure out where they got the 24,000 from.

I know the 120,000 is the total variable overhead cost. The other information given is Open Inv 1400 units, Production 12,000 units and sales 11,600 units. It takes 2 hours labour to make 1 unit. So I understand we need to / 120000 OH by the level of activity and then * by 2 (as in 2 hours) to get the absorption rate. What I don't get is where they get the 24,000 from.

We made 12000 units this period well that's not 24000. We sold 11600 that's also not 24000. Add the two together that's still not 24000. Where are they getting this 24000 from?


  • crispycrispy Trusted Regular SouthamptonRegistered Posts: 456

    The 24,000 represents the level of activity (ie: 24,000 labour hours)

    Variable O/heads = 2 Hours @ £ 5 = £10 per unit

    So, 12,000 Units at 2 hours each = 24,000 hours

    Hope this helps.
  • Danielle MiltonDanielle Milton Settling In Nicely Registered Posts: 23
    Oh I feel so silly now. Thank you so much for that.
Sign In or Register to comment.