Calculate all Checked Boxes in Column and Multiply

That was the point of asking whether the buttons on a single line were mutually exclusive or not.  To make them mutually exclusive you'll need to give all the buttons on a single line the same name. You can read more about it here:

https://www.pdfscripting.com/public/Checkboxes-and-Radio-Buttons.cfm

To show the different sums for each column you'll need to use a script that sorts for the different export values. It would help if all of the checkboxes in all rows were prefixed with the same name. 

For example "Checkbox.Row1", "Checkbox.Row2", etc.

Then the code could be written like this for column 1:

var nSum = 0;
this.getField("Checkbox").forEach(function(oFld){if(a.valueAsString == "1") nSum+= 1;});
event.value = nSum;