Big Cheese Chairs (BCC) manufactures and sells executive leather chairs. They are consider

Question

Big Cheese Chairs (BCC) manufactures and sells executive leather chairs. They are considering a new design of massaging chair to launch into the competitive market in which they operate.

They have carried out an investigation in the market and using a target costing system have targeted a competitive selling price of $120 for the chair. BCC wants a margin on selling price of 20% (ignoring any overheads).

The frame. and massage mechanism will be bought in for $51 per chair and BCC will upholster it in leather and assemble it ready for despatch.

Leather costs $10 per metre and two metres are needed for a complete chair although 20% of all leather is wasted in the upholstery process.

The upholstery and assembly process will be subject to a learning effect as the workers get used to the new design.

BCC estimates that the first chair will take two hours to prepare but this will be subject to a learning rate (LR) of 95%.

The learning improvement will stop once 128 chairs have been made and the time for the 128th chair will be the time for all subsequent chairs. The cost of labour is $15 per hour.

The learning formula is shown on the formula sheet and at the 95% learning rate the value of b is -0·074000581.

Required:

(a) Calculate the average cost for the first 128 chairs made and identify any cost gap that may be present at

that stage. (8 marks)

(b) Assuming that a cost gap for the chair exists suggest four ways in which it could be closed. (6 marks)

The production manager denies any claims that a cost gap exists and has stated that the cost of the 128th chair will be low enough to yield the required margin.

(c) Calculate the cost of the 128th chair made and state whether the target cost is being achieved on the 128th chair. (6 marks)

Answer 1

正确答案：

(W1)
The cost of the labour can be calculated using learning curve principles. The formula can be used or a tabular approach would
also give the average cost of 128 chairs. Both methods are acceptable and shown here.

(b) To reduce the cost gap various methods are possible (only four are needed for full marks)
– Re-design the chair to remove unnecessary features and hence cost
– Negotiate with the frame. supplier for a better cost. This may be easier as the volume of sales improve as suppliers often
are willing to give discounts for bulk buying. Alternatively a different frame. supplier could be found that offers a better
price. Care would be needed here to maintain the required quality
– Leather can be bought from different suppliers or at a better price also. Reducing the level of waste would save on cost.
Even a small reduction in waste rates would remove much of the cost gap that exists
– Improve the rate of learning by better training and supervision
– Employ cheaper labour by reducing the skill level expected. Care would also be needed here not to sacrifice quality or
push up waste rates.
(c) The cost of the 128th chair will be: