I am not the best in Sql functions. I just can't get this figured out.

 

I am trying to find how to get the difference of two numbers in the same Col. and place it  in the column next to first number.

 

For example: take 3225 - 3222  then Put 3   in SubT  Row 1 

Then Next row ..3222 - 3219 place 3 in Subtotal Row 2  etc

 

The dif is not always 3, I just inserted these numbers.

 

I would appreciate any help.

 

PJ