Sandy buys an old scooter for $800 and spends $200 on its repairs. If Sandy sells the scooter for $1200, what is the gain percent?  Choose the correct choice: A) 15% B) 18% C) 20% D) 22% E) 25%
selling price / total cost = 1200/1000= 
<gadget id="calculator">1200/1000</gadget>
<output>6/5 = around 1.2</output>
1.2   The gain percent is 20%.   The answer is 20%.
<result>C</result>
Sandy buys an old scooter for $800 and spends $200 on its repairs. If Sandy sells the scooter for $1200, what is the gain percent?