For a dessert station, a simple trick is to multiply the number of guests by 2.5 to determine the quantity of desserts needed. This is a good starting point. However, if your budget allows, you can increase this to 3.5 desserts per person, especially if you offer a variety of desserts for guests to choose from. It's also a nice idea to provide take-home boxes or bags near the dessert table as a bonus for your guests.