This snippet allows you to add custom content as a suffix to WooCommerce prices. You may wish to display information regarding tax, a product’s status, whether it’s used or new etc. The possibilities are endless!
/**
* Snippet Name: WooCommerce Add Suffix To Prices
* Snippet Author: ecommercehints.com
*/
add_filter( 'woocommerce_get_price_html', 'ecommercehints_add_suffix_to_prices', 10, 2 );
function ecommercehints_add_suffix_to_prices($price, $product) {
$price = $price . " (used)";
return $price;
}