What is variance in standard costing?

Suppose you are in 12th class. You dreamed of getting 95% in all 5 subjects.(It is called setting up standards).

What is basic concept of Overheads?

Suppose a student study 7 subjects in CA IPC. He purchase books for each subject and takes classes for each subject.

What is Halsey Scheme ?

Suppose you decide in the morning to attempt 20 questions of costing in 5 hours.

What is Bill of Material (BOM) and Material requisition note (MRN) ?

Suppose you went to a restaurant for giving party to friends on passing CA- Exam.You asked all your friends about the items they want to eat.

What is Margin of Safety?

Suppose a class 12th student need 33 marks to pass a paper.
If student get exactly 33 marks then he will be pass. These 33 marks are called Break-Even-Point Marks.

What is relation between Lead Time and Safety Stock

Suppose you are pizza addict. You love to eat 1 pizza daily. If you ordered pizza on 4 PM and you got delivery at 5 PM then difference 1 hour is called Lead Time.