How to Change the decimal representation

Thank you all for your help,
@velo-ninja thank you for your instructions, i tried to follow you but it seems i failed somewhere

$w . onReady ( function () {
// Write your JavaScript here

// To select an element by ID use: $w('#elementID') 

// Click 'Preview' to run your code 

});

this is what i see when i open the product page

i replaced it with the following with no success:

$w . onReady ( function () {
function toUsFormat (x){ return x . toLocaleString ( ‘en-US’ )} console . log ( toUsFormat ( 123456.789 ))
});

The good news is that all is solved once i set region and currency in the dashboard also with no code.

I still have one question please:
(ref. attached image)
how can i split the product name on two lines (ex. the product on the left) so the two products are well aligned, or maybe there is another trick to align the products buttons, quantity, names…

Thank you in advance for all your help