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:
Castle Point (UK Parliament constituency)
Table title:
Elections in the 2010s
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 class="highlighted"  colspan=1 rowspan=1 > Conservative </td><td colspan=1 rowspan=1 > Rebecca Harris </td><td colspan=1 rowspan=1 > 30,076 </td><td colspan=1 rowspan=1 > 67.3 </td><td colspan=1 rowspan=1 > +16.4 </td></tr>
<tr> <td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 > Labour </td><td colspan=1 rowspan=1 > Joseph Cooke </td><td colspan=1 rowspan=1 > 11,204 </td><td colspan=1 rowspan=1 > 25.1 </td><td colspan=1 rowspan=1 > +11.2 </td></tr>
<tr> <td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 > UKIP </td><td colspan=1 rowspan=1 > David Kurten </td><td colspan=1 rowspan=1 > 2,381 </td><td colspan=1 rowspan=1 > 5.3 </td><td colspan=1 rowspan=1 > −25.9 </td></tr>
<tr> <td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 > Liberal Democrat </td><td colspan=1 rowspan=1 > Tom Holder </td><td colspan=1 rowspan=1 > 1,049 </td><td colspan=1 rowspan=1 > 2.3 </td><td colspan=1 rowspan=1 > +0.6 </td></tr>
<tr> <th colspan=3 rowspan=1 > Majority </th><td colspan=1 rowspan=1 > 18,872 </td><td class="highlighted"  colspan=1 rowspan=1 > 42.2 </td><td colspan=1 rowspan=1 > +22.5 </td></tr>
<tr> <th colspan=3 rowspan=1 > Turnout </th><td colspan=1 rowspan=1 > 44,710 </td><td colspan=1 rowspan=1 > 64.4 </td><td colspan=1 rowspan=1 > −2.3 </td></tr>
<tr> <td colspan=1 rowspan=1 >  </td><td colspan=2 rowspan=1 > Conservative hold </td><th colspan=1 rowspan=1 > Swing </th><td colspan=1 rowspan=1 > +2.6 </td><td colspan=1 rowspan=1 >  </td></tr>
</table>
Question:
In the Castle Point election, Conservative has the majority of what percentage?
Answer:
In the Castle Point election, Conservative has the majority of 42.2%.