[rubberneck]

Hi,
My apologies if this mentioned somewhere else in the forum - couldn't find it.

I've got my cart set to give free shipping to orders over $300. What I want is a blurb that says "$xx until you qualify for free shipping". I think I know how to test if the total is less than a certain amount ({if $minicart_total_cost < 300}), but I don't know how to calculate the amount remaining. I assume I need to add it to a function somewhere.

Can someone help?

Thanks.