A store’s selling price of $2240 for a certain computer would yield a profit of 30 percent of the store’s cost for the computer. What selling price would yield a profit of 40 percent of the computer’s cost?  Choose the correct choice from the following options:
A) $ 2400
B) $ 2412
C) $ 2650
D) $ 2732
E) $ 2800

Rationale: "1.3 x = 2240 x = 2240 / 1.3 so , 1.4 x = 2240 * 1.4 / 1.3 = 2412 answer : - b"
Answer: B