the way mf works is say u have a .000001 chanche that u will find a wf from pindle ok and u have 400% better chance all the mf does is multiply 4.0 times .000001 so now u have a .000004 better chance of getting that wf so 430 mf would be 4.3 times .000001 ?get it? so the formula is {base chance of getting that item}multiplyed by{amount of mf}={new chance of getting item}