Add insatallment amount in product lists

Sequra.onLoad(function(){

    //CUSTOMIZE
    var item_selector = ".owl-wrapper .owl-item";
    var price_selector_in_item = ".price-box";
    var dest_selector_in_item = ".actions";
    var msg_template = "<i class='sequra_installment'>Desde %s /mes</i>"
    //CUSTOMIZE

   document.querySelectorAll(item_selector).forEach(function (item, index) {
       var price_item = item.querySelector(price_selector_in_item);
       if(!price_item) return;
       var the_amount = "" + parseInt(
           parseFloat(
               price_item.innerText.replace(/^\D*/,'')
                   .replace(sequraConfigParams.thousandSeparator,'')
                   .replace(sequraConfigParams.decimalSeparator,'.')
           ) * 100
       );
       var creditAgreement = Sequra.computeCreditAgreements({
           amount: the_amount,
           product: "pp3"
       })["pp3"]
       .filter(function (item){return item.default})[0];
       var installment_el = document.createElement('span');
       installment_el.innerHTML = msg_template.replace("%s",creditAgreement["instalment_total"]["string"]);
       item.querySelector(dest_selector_in_item).appendChild(installment_el);
   });
});