Table 1, outlines required total items (# of Items) for group sizes from 10 to 50, in intervals of 10. (For now, anyway, we will require group size to be a multiple of 10.) The second column multiplies the number of people by 2, creating the starting assumption that we will provide two items (one drink and one food item) per person. Lastly, the third column, # of Items, adds 5, 7, 9, 11, or 13 (depending on the group size) to the People * 2 value. This (and not merely People * 2) is what we will treat as our conservative estimate of items required, speaking to the fact that some in the group might want seconds, and that running out of items makes both the caterer and the event organizer look bad. So, for example, if the café will be catering for 10 people, then the bundle should include exactly 25 items (food and drinks combined). # of People People * 2 # of Items 10 20 25 20 40 47 30 60 69 40 80 91 50 100