HELP with access please

[smokewarlock]

i need help making a report that total up the sum of a field. i have the total of the fields going across but cant figure out how to make them total going up and down ...basically want to make it like a spreadsheet knowing the totals of each field (going up and down) as well as each record(going across). I have the report all set up but want to put a field in the report that shows the total of which ever field i choose to incorporate in the report. i hope i have explained myself clear enough...i have the report all set except for being able to add 3 boxes with the total of the fields....i really would like the help if someone could help me....much thanks in advance for the help