You think all of your 50 will buy one 5 days a week? If u say 50 a day 500 students 1 time a week them thats 50% of the students drinking jamba once a week. I think 10 sounds more realistic.
At $4 a smoothie if they got one everyday thats 20 a week. My alowance was 20 a week so that means all allowance just for jamba. I would say 125 out of 500 would opt to buy jamba once a week avg that is 20 to 25 a day