Perform the indicated operations and simplify the expression. 
Definitions:
Market Price
The rate at which a service or asset can presently be acquired or disposed of in the market.
Book Value
The net value of a company's assets minus its liabilities, often used as an estimate of a company's value if it were to be liquidated.
Market Price
The ongoing trading price for assets or services available in a market setting.
Retention Ratio
The percentage of a company's net income that is retained rather than being paid out as dividends, indicating reinvestment back into the business.
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