How to add a label near the price in front office

I believe you can try something like this:

add_filter(‘woocommerce_currency_symbol’, ‘change_existing_currency_symbol’, 10, 2);

function change_existing_currency_symbol( $currency_symbol, $currency ) {
switch( $currency ) {
case ‘Retail: ‘: $currency_symbol = ‘Retail: $’; break;
}
return $currency_symbol;
}

You probably need to take it a step further and test which user is currently logged in, then you could replace the stock price with “Retail: $5.99” when user is retail and then “$5.99” when it’s just the public.
This code goes in your functions.php file of your theme. You should make a child theme from your main theme; if you just update your main theme’s functions.php file, the next update will potentially “erase” the changes you made.

Cheers.
Dave