Variable Cost Concept of Product Pricing

Smart Stream Inc. uses the variable cost concept of applying the cost$-$plus approach to product pricing. The costs of producing and selling $6,000$ cellular phones are as follows:

Smart Stream wants a profit equal to a $15\%$ rate of return on invested assets of $$490,000.$

a$.$ Determine the variable costs and the variable cost amount per unit for the production and sale of $6,000$ cellular phones.

b$.$ Determine the variable cost markup percentage for cellular phones.

$\%$

c$.$ Determine the selling price of cellular phones. Round to the nearest cent.