Which cost item is fixed and variable and why?

Cost can be classified into two categories, fixed and variable cost. These costs behave differently based on the level of sales volumes. Suppose we are running a restaurant and have identified certain costs along with the number of annual units sold of 1000.

ITEM: Raw Materials (cost for hamburgers)
TOTAL ANNUAL COST: 650

ITEM: Building Rent
TOTAL ANNUAL COST: 9000

Identify which cost item above is fixed and variable and why? What is the cost per unit of each? Suppose we increase our sales volume to 6000 units and then to 8000 units the following year (and are still within the relevant range), what would be the total annual cost and unit cost of fixed and variable cost?

Solution Summary

The solution examines the difference between Fixed and Variable Costs followed by a detailed solution to the problem in 384 words in an attached Word document.