Hello and Help! :-)

I have this formula that works just like I want it to as long as cell b8 is
the only empty cell below cell b7.

=IF(AND(""=B8,B8=""),SUM(C7:C8),C7)

Or It could also be written like this. This seems cleaner and simpler to me.

=IF(B8="",SUM(C7:C8),C7)

However I need to know if there is a way to make either of the above
statements work if there are multiple empty cells below cell b7 when the
number of those empty cells is unknown. Keep in mind that the sum range above
of C7:C8 also needs to automatically adjust to include the next row(s) down
as well.

Any help would be greatly appreciated