Power training

[cracicot]

I bought the player below yesterday from transfermarket. 28 green packs later he has 49 skill points.

so correct me if I am wrong, but:

You spent 28 green packs, which is roughly 27-28 tokens and get 49 skill points = ~1.8 skill pts/token
With the personal trainer you spend 32-40 tokens and get 8 skill points = ~0.25 skill pts/token

Is this correct?