So this works out as (13000000/(7500* 0.1 * 2 *260)) ~= $33 a meal. How to get this to $400 a meal? That's more than order of magnitude difference. 13M at $400 a meal buys you 32500 meals and this is 125 meals a day served. 125 meals a day feeds ~60 employees only. Are there 60 employees in the offices of Twitter? Considering that Twitter is not a bank branch and the occupancy is not for only 260 days but for 365 and they don't close after 5PM, the number of people who can be at the office for the $400 meals must be considerably lower - something like 22 people at the office at a time on average(32500/(365*4)).
Can anyone with info on the Twitter HQ occupancy can confirm that there are about 22 people at the office at the same time?