It's a nice video, but I don't really understand the formula. They make the claim that they need to price products assuming 30% goes to food / ingredients, 30%

It's a nice video, but I don't really understand the formula. They make the claim that they need to price products assuming 30% goes to food / ingredients, 30% goes to labor, 20% goes to fixed costs, and the remaining 20% is kept as profit. Thus, the increase in wing cost means they have to increase the price from $14 to $22. However, the labor and fixed costs don't increase just because the ingredient cost increased. They list the new price of wings as $6.56. Assuming the $14 price was based on the formula, this is an increase of $2.36. They could keep the wings on the menu for $16.50 and make the same amount of profit as before.