Consider the following information:

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Retail price per unit:

$$150$

Wholesale price per unit:

$$80$

Manufacturer's price per unit:

$$50$

Manufacturer's variable cost:

$$35$

Retailer's fixed costs per quarter:

$$75,000$

Wholesaler's fixed costs per quarter:

$$1,750,000$

Manufacturer's fixed costs per quarter:

$$2,500,000$

Retailer's unit sales this quarter:

$1,800$

Wholesaler's unit sales this quarter:

$80,000$

Manufacturer's unit sales this quarter:

$160,000$

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What is the retailer's markup?

$$70$

$$30$

$$100$

$46\mathrm{.}7\%$