PHP:
<tr>
<th class="p-1 text-right" colspan="5">Advance Payment</th>
<th class="p-1 text-right" colspan="">$</th>
<th class="p-1 text-left" id="discount_amount"><?php echo isset($discount_amount) ? $formatted = number_format($discount_amount, 2, '.', ',') : 0 ?></th>
<tr>