Adding two Columns
 

I have an open workbook with mulitiple sheets. I want to create a column "F"
that will keep track of all transactions made in column "E". e.g
"E" "F"
Amount $ Balance
$5,000.00 $5,000.00
-$0.04 $4,999.96
$3.89 $5,003.85
$24,000.00 $29,003.85
$21,000.00 $50,003.85
$16,000.00 $66,003.85

However, as of right now, I have to manually add/subtract "E" and then type
it in to "F". What can I do to have this done automatically? I am falling way
behind in doing this manually and need to catch up/remain current on 50+
pages, and counting.