Sandy buys an old scooter for $900 and spends $300 on its repairs. If Sandy sells the scooter for $1320, what is the gain percent?
Pick one:
A) 2% B) 4% C) 6% D) 8% E) 10%
selling price / total cost = 1320/1200= 
<gadget id="calculator">1320/1200</gadget>
<output>11/10 = around 1.1</output>
1.1   The gain percent is 10%.   The answer is 10%.
<result>E</result>
Sandy buys an old scooter for $900 and spends $300 on its repairs. If Sandy sells the scooter for $1320, what is the gain percent?