Can I apply mathematic formula on values from shortcodes?

Hi,

I have a shortcode for displaying the price of a product (variant) → [woocommerce_price id=”XXXX”]. I use it in text and in some pricing tables.

I have monthly and yearly subscriptions.

I ould love to compare the monthly prices next to each other, so the discount for yearly is more prominent.

Is it possible to create another shortcode that divides [woocommerce_price id=”XXXX”] by 12?

This is my current shortcoode

function so_30165014_price_shortcode_callback( $atts ) {
    $atts = shortcode_atts( array(
        'id' => null,
    ), $atts, 'bartag' );

    $html = '';

    if( intval( $atts['id'] ) > 0 && function_exists( 'wc_get_product' ) ){
         $_product = wc_get_product( $atts['id'] );
         $html = "€ = " . $_product->get_price();
    }
    return $html;
}
add_shortcode( 'woocommerce_price', 'so_30165014_price_shortcode_callback' );

Thanks in advanced!
– Jan