Hook into variation price

Should I just hook into the woocommerce_variation_price_html? I am looking for a way to add a suffix after the prices. I thought I could use the following approach, but it doesn’t seem to work.

add_filter( 'woocommerce_variation_price_html', 'my_html', 10, 2); 

function my_html( $price, $variation ) {
return $price . ' suffix';
}

Thanks for your fast reply Mike. This is the price in question: http://imgur.com/a/9LA4W

Hey Mike.

Im not sure I understand your last reply. Can you please elaborate?

How would I change my function to target the place in my screenshot?

Thanks for your reply. Unfortunately, that doesn’t do any difference. Below is my exact code:

add_filter( 'woocommerce_get_variation_price_html', 'variation_price_b2b', 10, 2); 

function variation_price_b2b( $price, $variation ) {
	if (current_user_can('B2B-kaffe')) {
		return $price . ' ekskl. moms';
	}
}

Well, I’m adding it i my functions.php where I’ve succesfully hooked into my woocommerce_get_price_html. I am testing it with a B2B-kaffe user exactly the same way I do with my working woocommerce_get_price_html example. Im starting to get confused now 🙂