Add Price suffix with VAT toggle button

Hi,

I tried to add a suffix on price (listing product), Ex VAT or Inc VAT according to what was selected with the toggle VAT button. I’ve tried to add this function, but it doesn’t seem like a good one, so could you help me? Maybe there is another solution with the plugin?

add_filter( ‘woocommerce_get_price_suffix’, ‘custom_price_suffix’, 999, 4 );
function custom_price_suffix( $html, $product, $price, $qty ){
if ( $product->is_taxable() ) {
return ‘ ‘ . __(‘inc VAT’, ‘woocommerce’);
}else {
return ‘ ‘ . __(‘ex VAT’, ‘woocommerce’);
}
return $html;
}