Alexandr

[[!msGallery? &product=`[[+id]]` &tpl=`msGallerySliderItem.tpl`]]

{if $files?}
    {if $files | length > 1}
        <div class="slider-item-wrap">
            <div class="slider-item owl-carousel">
                {var $num = 1}
                {foreach $files as $file}
                    {if $num == 1} {var $num = 0}
                    {else}
                        <a href="{$id | url}"><img src="{$file['330x330']}" alt="{$file['description']}" title="{$file['name']}"></a>
                    {/if}
                {/foreach}
            </div>
        </div>
    {else}
    {/if}
{else}
{/if}

<a href="{$id | url}"><img src="{$file['330x330']}" alt="{$file['description']}" title="{$file['name']}"></a>

<?php
$price = empty($price) ? 0 : str_replace(' ', '', $price);
$old_price = empty($old_price) ? 0 : str_replace(' ', '', $old_price);

if($old_price > 0){
  return ''.((($old_price - $price) / $old_price) * 100);
} 
return '';

{($old_price — $price)/($price/100)}