remove price

how do i remove original price and the whole functions?

need to remove from backend tempalte, front end add new template and display template.

Hi,
To remove original price in the backend, please go to file administrator > components > com_osproperty > classes > property.html.php
Remove this code:
<tr>
<td class="key">
<?php echo JText::_("OS_ORIGINAL_PRICE")?>
</td>
<td>
<input type="text" name="price_original" id="price_original" value="<?php echo $row->price_original?>" size="10">
</td>
</tr>
In function editProperty

In the frontend, template, you can remove it by open file : classes > property.html.php,
and remove all code relate to field : price_original
For example : echo "<span class='old_price'>".HelperOspropertyCommon::loadCurrency($rproperty->curr)." ".HelperOspropertyCommon::showPrice($rproperty->price_original)."</span>";
You can see in this code, the original price is shown. If you remove it, the original price won't be shown.
Good luck
Dam

thanks. is there any other places need to remove as well.?

fav ,etc?

Yes, compare.html.php, locator.html.php, you can check those files, and remove all things relate ->price_original. Please backup file before making changes.
Thanks
Dam