Prikaz uvećane cijene za kartično plaćanje na 12-24 rata

add_action( 'woocommerce_single_product_summary', 'mx_price_per_installments_w_fee', 11 );

function mx_price_per_installments_w_fee() {

    global $product;
    $price = number_format($product->get_price(), 2, ".", "");

    $twelveinstallments = 12;
    $twentyfourinstallments = 24;
    $fee = (7.5/100) * $price;
    $feeextended = (10/100) * $price;
    $price4installments = $price + $fee;
    $price4extendedinstallments = $price + $feeextended;

    $price_per_twelvemonths = round ($price4installments / $twelveinstallments, wc_get_price_decimals(), PHP_ROUND_HALF_DOWN);
    $price_per_twentyfourmonths = round ($price4extendedinstallments / $twentyfourinstallments, wc_get_price_decimals(), PHP_ROUND_HALF_DOWN);

    echo "
    <div id='installments-container'>
        <div id='installments-text'>
        <ul>
        <li>Kartice jednokratno: <span>". $price ." kn</span> </li>
        <li>Kartice 2-12 rata: <span>". number_format($price4installments, 2, ".", "") ."<span> kn / već od <span>". $price_per_twelvemonths ." kn/mj.</span></li>
        <li>Kartice 13-24 rate: <span>". number_format($price4extendedinstallments, 2, ".", "") ."<span> kn / već od <span>". $price_per_twentyfourmonths ." kn/mj</span></li>
        </ul>
        </div>
    </div>
    ";
}