Talk:Upgrade/@comment-108.201.7.168-20141116190612/@comment-25435121-20141201173235

elementary math is all you need.

Metal Slime is an R card, which goes to level 50. Level 50 is 37900 exp.

N cards (assuming you mean lvl 1 N cards) provider 100 EXP.

so.... 37900 / 100 = 379