How do I predict weapon's dps with vagan?

I have 2h mace as shown below, 307 dps, if i craft 14-18 to 26-31 +phys damage to it, how much will it's dps become?

Rarity: Rare
Glyph Blow
Karui Maul
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Two Handed Mace
Physical Damage: 184-275 (augmented)
Critical Strike Chance: 5.00%
Attacks per Second: 1.34 (augmented)
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Requirements:
Level: 57
Str: 182
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Sockets: R R-R-R
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Item Level: 71
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20% increased Stun Duration on Enemies
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133% increased Physical Damage
22% increased Attack Speed
20% increased Global Critical Strike Multiplier
+9% to Fire Resistance

Currently it has 337dps with max quality, the most it could have, assuming max craft with Vagan is 417dps.

I've got a sheet with simple calcs like that, but there are calculators around to download.

wow thanks! i will find that calculator ;-)