1. Basic expenses: including the expenses of basic services such as party planning, hosting, sound, lighting, balloons and candy.

2. Catering expenses: including cakes, drinks, snacks and other catering expenses.

3. Venue rental fee: If you need to rent a venue, you also need to pay the venue rental fee.

4. Special activity expenses: Special activities, such as magic show and game interaction, need to be carried out, and corresponding expenses need to be paid.