VBA: adding values depending on Criteria

[BIGTONE559]

Again having issues with syntax.

i have a column in which there are negative and positive numbers. i have the following criteria that need to be met, however, can't figure out how to "store" the number for a running sum.

if cell <0 and instr(1,cells(cell.row,5),"Blah blah")>0 then

'need code here to add the value of the current cell_
to a running total that's being calculated over the range.

and then this number will be displayed on Sheets("Summary").Range("T3")

As usual i appreciate all the help.

 

[BIGTONE559]

I'm attempting a running sum here. . .buddy told me i wasn't being clear enough