you get 340k for winning a champions league group stage game
Currently, the prize money for winning the Champions League is 10.5 million euros. It is given to the team which wins the cup.
Chelsea made around 47.7 m pounds after winning the Champions League. This included the UEFA prize money and other bonuses.
A team gets around 40m-50m pounds for winning the Champions league. Apart from that, They also get 40 gold medals for team and coaching staff.
By winning the Champions League, or losing the final and becoming second.