The following table, chart contains beta coefficient estimates for six firms. Calculate the expected increase in the value of each firm's shares if the market portfolio were to increase by 10 percent. Perform the same calculation where the market drops by 10 percent. Which set of firms has the most variable or volatile stock returns? (chart below)

Input the expected increase in the value of each firm's shares if the market portfolio were to increase by 10%.(Round each answer to two decimal places.) (chart below)

Company	Microsoft Money Central (MSN.com) Beta Estimate	Expected Increase
Computers and Software
Apple Inc. (AAPL)	2.64	____%
Dell Inc. (DELL)	1.56	_____%
Hewlett Packard (HPQ)	1.25	____%
Utilities
American Electric Power Co. (AEP)	0.63	_____%
Duke Energy Corp. (DUK)	0.42	____%
Centerpoint Energy (CNP)	0.95	_____%