Making a text with two counters in it, ie "x out of x"

I want to make a coin counter in my game that shows both the collected coins as well as the amount of coins still left on the map.

I am adding into a global variable every time a coin is picked up, and the text is set to this global variable. But how do I add text between two variables on a text? I tried inserting "out of" or "/" in between the two but that doesn't work.

Set text to - Var1 & "text string" & var2

That's it, thank you!