Discount percentage instead of "On sale"

[Alexander]

Alexander

June 3, 2016 at 11:54 am

Hello ,

I want to have a discount percentage instead of “On sale” on the products that are on sale.
I found a function that you have posted on WordPress forums and i have added it on my functions.php of my child theme :

add_filter( ‘woocommerce_sale_flash’, ‘kt_custom_sales_flash’, 10, 2 );
function kt_custom_sales_flash() {
global $product;
$percentage = round( ( ( $product->regular_price – $product->sale_price ) / $product->regular_price ) * 100 );
return ‘<span class=”onsale bg_primary headerfont”>’. sprintf( __(‘ Save %s’, ‘virtue’ ), $percentage . ‘%’ ).'</span>’;
}

but that returns this on my site : Warning: Division by zero in /functions.php on line 14.

What am i doing wrong?

Thanks in advance for your cooperation