Using the Sum equation in a general table

[TomMalinski]

SolidWorks 2016 SP5
I'm trying to utilize a Sum equation in a general table
In my table I have a column with 5 rows, I typed values into each cell in the column. Immediatelt below in the 6th row I am trying to use the Sum equation for the 5 cells above with no luck. It shows the Sum equation formula in the cell but does not apply the Sum function.
Any help is appreciated.

Tom

 

[TomMalinski]

I figured it out.
Thanks anyway

tom

 

[GRF]

What was the solution?

 

[CorBlimeyLimey]

Looks like you have to type the cells being summed manually. e.g. =SUM(B1:B3)