I've got a column of positive and negative numbers that I want to total in
two ways :

- net - ie just natural addition which I can do with the SUM formulae
- absolute - ie the total being based on an assumption that all numbers are
positive

A slightly messy way (because of the design of the spreadsheet) is to create
an extra column of absolute values and sum that.

So my question is 'Is there are formulae I can use to do an absolute sum on
those values directly?'

TIA

Rob