Don’t other labor costs (e.g. payroll taxes) scale with pay? So the daily savings are more than $60.
And $60/day conserves $1,800 a month, which is a decent amount of cash for a restaurant. If it’s a lunch-rush shop with marginal dinner business, $2,000/month could be the break point for that shift and those jobs.
Absent zoning reform, however, these wages are more likely to flow into higher rents versus consumption or savings.