I'm trying to change the Woocommerce's product default currency based on the category.

Like if "Audio" is a category then set the EUR to be the currency.

I've tried the code below but it's not working:

```
function change_woocommerce_currency( $currency ) {
    if ( is_product_category( 'audio' ) ) {
        $currency = 'EUR'; 
    }
    return $currency;
}
add_filter( 'woocommerce_currency', 'change_woocommerce_currency' );

```

The currency price needs to be changed on the product page as well that currency to be on the cart and checkout page, and the charge needs to happen in that category's currency.