Read the following caselet and choose the best alternative
The BIG and Colourful Company
You are running "BIG and Colourful (BnC)" company that sells books to customers through three retail formats:
a. You can buy books from bookstores,
b. You can buy books from supermarket,
c. You can order books over the Internet (Online).
Your manager has an interesting way of classifying expenses: some of the expenses are classified in terms of size: Big, Small and Medium; and others are classified in terms of the colors, Red, Yellow, Green and Violet. The company has a history of categorizing overall costs into initial costs and additional costs. Additional costs are equal to the sum of Big, Small and Medium expenses. There are two types of margins: contribution (sales minus initial costs) and profit (contribution minus additional costs).
Given below is the data about sales and costs of BnC: