60 x Damage / Delay = Damage Per Second (DPS).
As Per ffxi.cannotlinkto. If you are only comparing weapons to see which is better, you could leave out the 60, but since it makes a fractional result with no whole numbers, the 60 is useful anyway.
You'll be happy to know, since you are on the Hammer page, that this is the best dps class of all clubs. Kind of dumb system really, to allow one weapon such superiority, but forewarned is forearmed.