Talk:Fusion Core/@comment-27844525-20160819180532/@comment-64.134.71.137-20160819204913

Primed mods are "Legendary" rank which have 4x multiplier for Fusion Energy costs, compared to common mods. Divided by 4, we get 10230 Endo. Which checks out with a R10 Common mod.

Now, going from Rank 0 to Rank 1 is 10 Endo. So really, the system seems to exist with a 10x multiplier for a "full" unit. So dividing by 10 we get 1023 units. And we know mods have always required a binary number of units, minus one, for ranking up. In the old system, this was the number of duplicates needed to reach that rank... though  you can't use duplicates in that way currently.

So really, this costs 2^10 (2^rank) * 10 (figuring out the decimal) * 4 (rarity mul tiplier ) = 40920 Endo (or, Fusion Energy, in the old system.)

I won't try to make sense of the credits, but this is how we figure the cost of the Energy.