Sandy buys an old scooter for $800 and spends $200 on its repairs. If Sandy sells the scooter for $1400, what is the gain percent? Pick:	A) 20%	B) 30%	C) 40%	D) 50%	E) 60%
selling price / total cost = 1400/1000= 
<gadget id="calculator">1400/1000</gadget>
<output>7/5 = around 1.4</output>
1.4   The gain percent is 40%.   The answer is 40%.
<result>C</result>
Sandy buys an old scooter for $800 and spends $200 on its repairs. If Sandy sells the scooter for $1400, what is the gain percent?