Help with sums in a spreadsheet

[Stephen]

Hi,
Im making a new spreadsheet to enter staff details, iv got
one blank sheet and one totals sheet.

Iv added staff details and they all add up in the totals
sheet. When we get a new staff member and copy the blank
sheet to enter the new details, the formulas don't copy as
well.

Does anyone know how (if possible) to add up a certain
cell from all sheets?

Cheers for any help
Steve