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app revision kit- Q22.4 and 22.5

QQ10y ago
Dear Sir, could you please explain to the answers for the above questions: Q 22.4 with the change in production method, variables costs will fall from 40% of sales to 36%? Q 22.5 .......variable cost would add £2 to profit for each kg of material bought and used, how do I get the £2? Many thanks
John MoffatJohn MoffatTutor10y ago#1
22.4 Currently, because the CS ratio is 60%, the variable costs must be 40% of sales. If variable costs fall by 10% then they fall by 10% x 40% = 4% and fall to 40 - 4 = 36% of sales. 22.5 The shadow price is the most extra they would be prepared to pay over the normal price. So they would be prepared to pay up to 16 (10 + 6) per kg. They can buy for 14 per kg and therefore they will buy extra (and make extra profit of 16 - 14 = 2 per kg). The free lectures on both of the these topics will help you.
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