Answer: The extra amount added to the selling price to arrive at the cost price.
Step-by-step explanation:
The mark up amount is the extra amount added by a seller to the cost price of a commodity to cover expenses and profit in fixing the selling price.
It is the difference between the cost price and the selling price.
It is calculated as a percentage of either the selling price or the cost price.
Hence, the right option is " the extra amount added to the selling price to arrive at the cost price".
