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Forums › Ask ACCA Tutor Forums › Ask the Tutor ACCA PM Exams › relevant costing
Hi John!
When workers are moved from one job to another, the relevant cost is the rate of pay + any lost contribution.
-From you lectures, I do have understood the reason for the lost contribution; however why the relevant cot also include the rate of pay? What’s the logic?
Suppose the current job gives revenue of $100, has a labour cost of $30, and other variable costs (materials etc) of $10. So there is a contribution of $60.
If the labour is taken for a new contract, then we lose the revenue of $100, we save the materials etc, of $10, but we will still be paying the labour of $30.
So the amount lost (the relevant cost) will be 100 – 10 = 90.
This is always equal to the lost contribution (60) plus the labour cost (30).