Question introductive<p>An analyst gathers the following data for a value-weighted index:</p> <table style="width:80%;text-align:center"> <tr> <th></th> <th colspan="2" >Beginning of Period</th> <th colspan="2" >End of Period</th> </tr> <tr> <th>Security</th> <th>Price (£)</th> <th>Shares Outstanding</th> <th>Price (£)</th> <th>Shares Outstanding</th> </tr> <tr> <td>A</td> <td>20.00</td> <td>300</td><td>22.00</td><td>300</td> </tr> <tr> <td>B</td> <td>50.00</td> <td>300</td><td>48.00</td><td>300</td> </tr> <tr> <td>C</td> <td>26.00</td> <td>2,000</td><td>30.00</td><td>2,000</td> </tr> </table>

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