[@Balthazar007]

Er uh am I doing this correctly for Leisy's Fletchling, because it looks like it works like this right now:

[(current level)÷10]×(first evolution level)
Current Level = 13
First Evolution Level = 17
(13+10) * 17 = 23 * 17 = 391

... level 391?? Maybe you meant "+" where you typed "x?"