OK my fuzzy math is getting rusty even with help from the online calculator.

Lets say you had a vial of powder that was 2mg x 2ml, how much Bacteriostatic Water would you add to get 100mcg per 10iu? (1ml bac water?)

Lets say you had a vial of powder that was 5mg x 2ml, how much Bacteriostatic Water would you add to get 100mcg per 10iu? (3ml bad water?)

Sorry if this makes no sense. It's been a while.