{% if invoice.club_member_discount %}
<tr id="invoice-club-member-discount-row">
  <td>Club member discount</td>
  <td>{{ invoice.currency_symbol }}{{ invoice.club_member_discount|floatformat:2 }}</td>
</tr>
{% else %}
<tr id="invoice-club-member-discount-row" style="display: none;"><td></td><td></td></tr>
{% endif %}