Ahah! That works perfectly, that's brilliant, thanks so much.

I'm a complete novice so I was thinking the solution would involve more curly brackets, I hadn't thought one could use standard brackets.

This is simply using the parentheses to dictate the order of operations.

Yep, I didn't know one could use regular brackets, but Italophile set me straight, so I'm all set.

I'm completely new to this, never done anything like this before. Thanks for your reply.