I am hosting a tournament where individuals can sign up for multiple activities. With an entry fee of $60, they can choose up to 3 included activities. Additional activities will cost them $5 each.
Example 1) User1 selects 2 activities, he must pay $60
Example 2) User2 selects 3 activities, he must pay $60
Example 3) User3 selects 1 activitie, he must pay $60
Example 4) User4 selects 5 activities, he must pay $70
Example 5) User5 selects 4 activities, he must pay $65
In all examples, they can also purchase spectator tickets which would be and additional $10/spectator.
Also, when they select an activity, they must also specify their skill level/rank (which can be different per activity).