The marginal cost per month per sandwich of making 300 additional sandwiches per month for Gut Bombs is $9.76.
The marginal or incremental cost is the increase or decrease in the cost of producing one more unit.
Food cost per month = $1.43
Monthly wages per worker = $2,500
Marginal cost = $2,929 ($1.43 x 300 + $2,500)
Marginal cost per unit = $9.76 ($2,929/300)
Thus, the marginal cost per month per sandwich of making 300 additional sandwiches per month for Gut Bombs is $9.76.
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