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:
Bassetlaw (UK Parliament constituency)
Table title:
Elections in the 1960s
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 > Labour </td><td class="highlighted"  colspan=1 rowspan=1 > Joe Ashton </td><td colspan=1 rowspan=1 > 21,394 </td><td colspan=1 rowspan=1 > 49.64 </td><td colspan=1 rowspan=1 > 11.99 </td></tr>
<tr> <td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 > Conservative </td><td colspan=1 rowspan=1 > Jim Lester </td><td colspan=1 rowspan=1 > 20,654 </td><td colspan=1 rowspan=1 > 47.92 </td><td colspan=1 rowspan=1 > +9.55 </td></tr>
<tr> <td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 > Independent </td><td colspan=1 rowspan=1 > Thomas Lynch </td><td colspan=1 rowspan=1 > 1,053 </td><td colspan=1 rowspan=1 > 2.44 </td><td colspan=1 rowspan=1 > n/a </td></tr>
<tr> <th colspan=3 rowspan=1 > Majority </th><td colspan=1 rowspan=1 > 740 </td><td class="highlighted"  colspan=1 rowspan=1 > 1.72 </td><td colspan=1 rowspan=1 > 21.55 </td></tr>
<tr> <th colspan=3 rowspan=1 > Turnout </th><td colspan=1 rowspan=1 > 43,101 </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 >  </td><td colspan=2 rowspan=1 > Labour hold </td><th colspan=1 rowspan=1 > Swing </th><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 >  </td></tr>
</table>
Question:
Which seat was retained for the Labour Party by Joe Ashton with what percentage of a majority?
Answer:
The seat of Bassetlaw was retained for the Labour Party by Joe Ashton with a 1.72% majority.