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back of napkin math:

50% goes to vendors, so that's down to 380mm

4,000 employees at average of $50K, comes out to 200mm

180mm remaining...they advertise pretty aggressively, so let's say they spend 100mm on ads(probably less).

Which still leaves them with 80mm in profit

I know it's back of the napkin accounting, but lets not forget all the other operational costs?

- Credit card processing on all transactions (3%?) - Office space for 4000 employees - Taxes - etc

Would take another huge chunk out of that 80mm