Toy manufacturer makes 100,000 dolls to sell at $6 each

Costs $4.50 per unit (4.5 * 100,000 = $450,000)
How many dolls must they sell to cover expenses?
Answer:

To cover expenses, the toy manufacturer needs to sell enough dolls to generate $450,000 in revenue. If each doll is sold for $6, they need to sell $450,000 / $6 = 75,000 dolls to cover expenses.