Answer:
Her kitchen Staff can spend up to $3.00 on product cost.
Step-by-step explanation:
Selling price= $10.00
Margin= $4.00
Labor costs = $10.00*30% = $3.00
Selling Price = Contribition margin + Labor costs + Product Cost.
Isolating Product cost from the equation:
Product cost = Selling price - (Contribution margin + Labor costs)
Product cost = $ 10.00 - ($4.00 + $3.00)
Product cost = $ 10.00 - $7.00
Product cost = $ 3.00
The max. amount that kitchen staff can spend on product cost is: $ 3.00