I must say he's not the most complete ST in the game, and if what you like is running and dribbling style, maybe Belotti is not the best option for you, go for Gabriel Jesus. Nevertheless, the finishing skills of this guy are insane, you can trust in both left and right foot as he's 5* weak foot, and I really noticed that in game. All you have to do is hold the ball, try to combine a couple of passes with the rest of the team and give him the ball in front of the area or inside of it, he will easily score nice power shots. Also, I think his pace is pretty decent for a finisher striker, sometimes you can easily join the area with a triangle between the defenders, his strengh helps too.
Definetely, a good and economic choice if you can't/don't want to spend a greater cuantity of money to use other strikers!
5 Weak Foot, beast with left foot.
Pretty decent strength and physicality overall
Overall good ST qualities for a "cheap" player
Dribbling, don't try it that much
Not the best passing, but it's not that relevant