Please read the following table in HTML format from a webpage and then answer the question in detail according to the table. Each table cell is defined by a <td> and a </td> tag. Each table row starts with a <tr> and ends with a </tr> tag. 'rowspan=m' and 'colspan=n' represents a cell spaning over 'm' rows and 'n' columns.

Webpage title:
2013 Rangitikei local elections
Table title:
Mayor
Table:
<table id='hittask' contenteditable='False'>
<tr> <th colspan=2 rowspan=1 > Party </th><th colspan=1 rowspan=1 > Candidate </th><th colspan=1 rowspan=1 > Votes </th><th colspan=1 rowspan=1 > % </th><th colspan=1 rowspan=1 > ± </th></tr>
<tr> <td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 > Independent </td><td class="highlighted"  colspan=1 rowspan=1 > Andy Watson </td><td class="highlighted"  colspan=1 rowspan=1 > 1,983 </td><td colspan=1 rowspan=1 > 41.47 </td><td colspan=1 rowspan=1 > — </td></tr>
<tr> <td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 > Independent </td><td class="highlighted"  colspan=1 rowspan=1 > Chalky Leary </td><td class="highlighted"  colspan=1 rowspan=1 > 1,497 </td><td colspan=1 rowspan=1 > 31.30 </td><td colspan=1 rowspan=1 > −68.70 </td></tr>
<tr> <td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 > Fresh Future Focus </td><td colspan=1 rowspan=1 > Maree Brannigan </td><td colspan=1 rowspan=1 > 687 </td><td colspan=1 rowspan=1 > 14.37 </td><td colspan=1 rowspan=1 > — </td></tr>
<tr> <td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 > Independent </td><td colspan=1 rowspan=1 > Richard Aslett </td><td colspan=1 rowspan=1 > 615 </td><td colspan=1 rowspan=1 > 12.86 </td><td colspan=1 rowspan=1 > — </td></tr>
<tr> <th colspan=3 rowspan=1 > Majority </th><td class="highlighted"  colspan=1 rowspan=1 > 486 </td><td colspan=1 rowspan=1 > 10.16 </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <th colspan=3 rowspan=1 > Total valid votes </th><td colspan=1 rowspan=1 > 4,782 </td><td colspan=1 rowspan=1 > 99.63 </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <th colspan=3 rowspan=1 > Informal votes </th><td colspan=1 rowspan=1 > 18 </td><td colspan=1 rowspan=1 > 0.38 </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <th colspan=3 rowspan=1 > Turnout </th><td colspan=1 rowspan=1 > 4,856 </td><td colspan=1 rowspan=1 > 49.22 </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <th colspan=3 rowspan=1 > Registered electors </th><td colspan=1 rowspan=1 > 9,866 </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 >  </td></tr>
</table>
Question:
What was the vote majority that led to Mayor Andy Watson being elected and who did he defeat?
Answer:
Mayor Andy Watson was elected defeating Chalky Leary by a 486-vote majority.