Melissa owns the following portfolio of stocks. What is the return on her portfolio? 
Definitions:
Scale Reduction
The process of downsizing the scope or size of operations, often in response to operational inefficiencies or declining profits.
Long-Run Average Total Cost
The average cost per unit of output incurred when all factors of production, including capital, are variable, considered over a sufficient period for all adjustments to be made.
Decreasing Returns to Scale
Decreasing returns to scale occur when increasing the inputs used in production results in a less than proportional increase in output.
Total Cost
The aggregate of expenses involved in creating goods or delivering services, covering both stable and changeable costs.
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