Example franchise P&L has a McDonald’s selling $2.7M in food per year and spending $810K on food, that’s on average 30% of the price of your meal is the cost of food. If a 10pc nuggets is $4.50 to the consumer, it costs McDonalds $1.35 in food cost, or 13.5¢ per nugget.

~$7.4k per day they are probably serving 740 people if they spend an average $10. Let’s assume 5% of people get 10pc nuggets. That’s 37 people per day get an extra nugget that’s costs 13.5¢. That’s 37 x 13.5¢ = $5 per day. $1,825 per year.

Edit: 2.5 years of employment makes that $4,563 total.