Woo Discount v2: Get discount percentage of the product

Woo Discount v2: Get discount percentage of the product

add_filter('advanced_woo_discount_rules_strikeout_price_html', function ($html, $original_price, $discounted_price, $is_variable_product, $initial_price_html, $separator, $original_price_raw, $discounted_price_raw) {
    if ($original_price != $discounted_price) {
        if ($initial_price_html) {
            $html = '<ins>' . $discounted_price . '</ins>' . $separator . '<del>' . $initial_price_html . '</del>';
        } else {
            $html = '<ins>' . $discounted_price . '</ins>' . $separator . '<del>' . $original_price . '</del>';
        }
        $percentage = 0;
		if(!$is_variable_product){
			 if($original_price_raw >0)
            if ($discounted_price_raw < $original_price_raw) {
                $percentage = round((($original_price_raw - $discounted_price_raw) / $original_price_raw) * 100);
            }
		}
       
    }
    if ($is_variable_product) {
        $space = '&nbsp;';
        $ndash = '&ndash;';
        $currency_code = '$';
        if(function_exists('get_woocommerce_currency_symbol')){
            $currency_code = get_woocommerce_currency_symbol();
        }
        $original_prices = explode(" &ndash; ", $original_price);
        $discounted_prices = explode(" &ndash; ", $discounted_price);
        $html = '<ins>' . $discounted_prices[0] . '</ins>' . $space . '<del>' . $original_prices[0] . '</del>';
        if(isset($discounted_prices[1])){
            $html = $html. $ndash . $space .'<ins>' . $discounted_prices[1] . '</ins>' . $space . '<del>' . $original_prices[1] . '</del>';
        }
        $percentage = 0;
        $original_price_raw = strip_tags(str_replace($currency_code, '', $original_prices[0]));
        $discounted_price_raw = strip_tags(str_replace($currency_code, '', $discounted_prices[0]));
        if($original_price_raw > 0)
            if ($discounted_price_raw < $original_price_raw) {
                $percentage = round((($original_price_raw - $discounted_price_raw) / $original_price_raw) * 100);
            }
    }
    if ($percentage > 0) {
        $html .= " (".$percentage."% off)"; // here you can get the product discount percentage
    }

    return $html;
}, 10, 8);