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Erica says

Sir, what about this :

A supermarket carries inventory of a certain for which of the following information is available :

The demand is 500 units per day; the lead time is 4 days; the re-order quantity is 3,000 units. At what level of inventory should a replenishment order be placed in order to ensure that there are no stock-outs?

(answer is 2000 units) i do not know how to work this one out.

johnmoffat says

To not run out, the need to reorder when they have 4 days x 500 units left – i.e. a reorder level of 2,000 units!

Erica says

what formula did you use?

johnmoffat says

There is no formula – think about it. If you are selling 500 a day, and it takes 4 days to receive an order, then you need to have 2000 left when you place a new order!!!!

Erica says

Sir, i left a comment under Financial performance measurement lecture chapter. Thanks

Erica says

Sir, how do you work this out?

A company purchases 5000 units per quarter at an even rate throughout the year. Each order placed with the supplier incurs a delivery charge of $20. The annual cost of holding one unit in inventory is $5. What is the minimum total of the inventory costs (order costs plus holding costs) per year?

johnmoffat says

First you use the formula on the formal sheet to get the Economic Order Quantity.

D = 4 x 5000 = 20,000. Co = 20; Ch = 5.

So the EOQ = 400 units.

Then you calculate the annual cost:

Delivery costs per annum = 20,000/400 x $20 = $1,000

Holding cost = 200/2 x $5 = $1,000

So total = $2,000.

Erica says

i see, thanks! Sorry if I may ask, are you the one who sets the question for FMA?

johnmoffat says

We are not the ACCA

The ACCA employs an examiner (and an examining team) – they set the exam questions.

Mohammed says

Sorry if this has been asked before, but when calculating the total cost p.a. at the EoQ, if the number of orders calculated returns a decimal answer (such as 11.25 orders in the question above), shouldn’t we round to 12 and then apply the order cost? Surely there’s no sense is calculating the cost of 11.25 orders…(unless we live amongst unicorns).. or is this like an average and in reality you’d make 10 orders of 160 and an 11th order of 200 units (or what ever other arrangement)

johnmoffat says

Obviously you cannot make 11.25 orders.

However (and I do explain this in the lecture) we assume that it is a long term decision. In the first year you will place 12 orders, but there will be some inventory left at the end of the yea. So in the second year you will only need 11 orders, and so on.

On average there will be 11.25 orders, and it is important for the costings not to round this.

edge says

In question a you’ve calculated EOQ to be 160 yet used 200 in the calculation for total cost p.a. Can you please explain why?

edge says

@edge, nevermind, you’ve corrected your mistake later.

danishtaleef says

what about minimum inventory control level…?

just did a few questions , did them all, but i don’t get its logic…

pepperoniii says

sorry but the video ended before (d) was answered. I suppose the answer is 20000-14000= 6000 units? or am i wrong