A store is instructed by corporate headquarters to put a markup of 43% on all items. An item costing $7 is displayed by the store manager at a selling price of $3. As an employee, you notice that this selling price is incorrect. Find the correct selling price. What was the manager's likely error?
The manager multiplied the price by 43%, instead of noticing the words "mark up", which means the price increased by 43 percent and the cost is multiplied by 143/100!