How many workers do McDonald's have in all there rsturants?

It depends on the store's volume. (How busy the store is). Higher volume stores requires more workers. The stores that I've worked in brought in about $2.5 million a year and requires about 85 to 100 crew members to be employed with about 8 to 10 managers additional to those numbers. On the regular basis, about 12-14 are scheduled to work each shift. And those stores were labeled as "medium" volume. Imagine working in high volume travel store during the holiday weekend....hectic! :)