How to update the discount value of a product without refreshing the page?

Question

PHP

Hello!

Discounts are set on the site depending on the total cost of the order. The cart shows the discount amount, but the value is updated only after the page is refreshed.

I found the discount output itself and the component script, but I can’t figure out how to add processing through ajax of the discount value

<td class="fwb">
              <?if (floatval($arResult["DISCOUNT_PRICE_ALL"]) > 0):?>
                <span class="sale-value">Ваша скидка составляет <?=$arResult["FULL_DISCOUNT_LIST"][0]["ACTIONS_LIST"]["CHILDREN"][0]["DATA"]["Value"]?>% </span>
              <?endif;?>
            
            </td>