You can check your score by tapping the top hat found on the left side of the gameboard, above the number of candies that you have to match.

At the end of the game, all remaining turns will be turned into rockets, which will then clear most of your gameboard for additional points.

Exceeding your goal points in a gameboard earns you a Golden Top Hat for that round. A Golden Top hat guarantees the most number of coins for that level.