Prestashop et les pourcentages de réduction

<div class="eb-product-price clearfix"> 
     {if $product.e_prix_kiosque > $product.price}Prix Kiosque : {convertPrice price=$product.e_prix_kiosque}{/if}          
                        {if isset($product.show_price) && $product.show_price && !isset($restricted_country_mode)}Prix Final : {if !$priceDisplay}{convertPrice price=$product.price}{else}{convertPrice price=$product.price_tax_exc}{/if}{/if} 
                        {if isset($product.available_for_order) && $product.available_for_order && !isset($restricted_country_mode)}<p class="availability">{if ($product.allow_oosp || $product.quantity > 0)}{l s=''}{elseif (isset($product.quantity_all_versions) && $product.quantity_all_versions > 0)}{l s=''}{else}{l s='Out of stock'}{/if}</span>{/if} 
                    {/if} 
</div> 
{if $product.e_pourcentage > 0} 
<div class="eb-product-desc clearfix">      
        <p>- {$product.e_pourcentage|strip_tags:'UTF-8'}%</p>   
</div>
{/if}