Add content before discounted price

Add content before discounted price.

if(!function_exists('woo_discount_rules_price_strikeout_after_discount_price_method')){
    function woo_discount_rules_price_strikeout_after_discount_price_method($item_price, $product){
	$item_price = str_replace('</del> <ins>', '</del> price from <ins>', $item_price);
        return $item_price;
    }
}

add_filter('woo_discount_rules_price_strikeout_after_discount_price', 'woo_discount_rules_price_strikeout_after_discount_price_method', 10, 2);