I am having problem to sum the cells of inserted colums. Initial total colum
is in colum B, cell is B10. Every month, there will be 3 colums inserted by
running a macro in another worksheet. The initial colum B will become colum
E. I need total colum to be updated as new colums inserted. after 3 months I
want to see in cell K10 is the result of SUM(D10,G10,J10).

Many thanks.

YingRui Oliviero