Within /admin/products_price_manager.php, lines 885-895 read:
Code:
<?php
  if (DISPLAY_PRICE_WITH_TAX_ADMIN == 'true') {
?>
            <td class="main" align="center"><?php echo TEXT_PRODUCTS_DISCOUNT_PRICE_EACH_TAX; ?></td>
            <td class="main" align="center"><?php echo TEXT_PRODUCTS_DISCOUNT_PRICE_EXTENDED_TAX; ?></td>
<?php } else { ?>
            <td class="main" align="center"><?php echo TEXT_PRODUCTS_DISCOUNT_PRICE_EACH; ?></td>
            <td class="main" align="center"><?php echo TEXT_PRODUCTS_DISCOUNT_PRICE_EXTENDED; ?></td>
<?php } ?>
          </tr>
<?php
but the lines 947-959 read:
Code:
<?php
  if (DISPLAY_PRICE_WITH_TAX == 'true') {
?>
            <td class="main" align="right"><?php echo $currencies->display_price($discounted_price, '', 1) . ' ' . $currencies->display_price($discounted_price, zen_get_tax_rate(1), 1); ?></td>
            <td class="main" align="right"><?php echo ' x ' . number_format($discount_name[$i]['discount_qty']) . ' = ' . $currencies->display_price($discounted_price, '', $discount_name[$i]['discount_qty']) . ' ' . $currencies->display_price($discounted_price, zen_get_tax_rate(1), $discount_name[$i]['discount_qty']); ?></td>
<?php } else { ?>
            <td class="main" align="right"><?php echo $currencies->display_price($discounted_price, '', 1); ?></td>
            <td class="main" align="right"><?php echo ' x ' . number_format($discount_name[$i]['discount_qty']) . ' = ' . $currencies->display_price($discounted_price, '', $discount_name[$i]['discount_qty']); ?></td>
<?php } ?>
          </tr>
<?php
    }
?>
Shouldn't line 948 be changed to:
Code:
  if (DISPLAY_PRICE_WITH_TAX_ADMIN == 'true') {