To sell or not to sell?

[Anquilis]

90% is not that much, not at all. It is possible to train the team up to 130%+ without paying real money (being in Gold1 or better in Platinum helps).

Approx. how much green packs? Could you possibly show me how because I'm in Gold 1. I started this season off with an average team rating of 95%, which is now 98%.

I have to rely on my tactics this season as my opponents are like 10%-20% above me, will be hard winning anything.

Also, how do I accept the offer? I can only set the price.