How can I put a cell value into the messagebox?

Here's my problem :-
I have a huge worksheet with a macro in which I need to disable screen
updating in order to speed up the macro
However I'd like to know the % progress of the whole process and Cell C2
holds this info.

How do I get the value in C2 into the MsgBox , or is there a better way to
do it?

Thanks
Lisa