The total cost of 100 dresses is $1,500.00. The mark-up is estimated at 20% of the unit cost, the pr

[math_celebrity]

The total cost of 100 dresses is $1,500.00. The mark-up is estimated at 20% of the unit cost, the price of a single dress using the cost-plus method will be

The phrase unit cost means price per one unit.

Unit cost for one dress is:
Price of dresses / Number of dresses
1500/100
15
Each dress cost $15 which is the unit cost

Cost plus method:
Cost plus price = Unit price + Unit price * markup
Cost plus price = 15 + 15 * 20%
Cost plus price = 15 + 3
Cost plus price = $18