I'm 180 pounds, so I see the calculation as this: 280ucg x 30 days x 82kg = 0.69 So what is the units? I assumed kg, since 82 is the number of kg, and I converted the 280 into kg... oh. That is my mistake. Dividing 280 by a million gave grams, not kilos. So, I'd need 0.7 grams.
And...