Preço Personalizado para WooCommerce Produtos Variáveis

function custom_variable_price_html( $price, $product ) {
    $price = '';

    if ( ! $product->min_variation_price || $product->min_variation_price !== $product->max_variation_price ) {
        $price .= '<span class="from">' . __( 'A partir de' ) . ' </span>';
    }

    $price .= woocommerce_price( $product->get_price() );

    return $price;
}

add_filter( 'woocommerce_variable_price_html', 'custom_variable_price_html', 10, 2 );