While bird watching, Gabrielle saw 5 robins, 4 cardinals, and 3 blue jays. Chase saw 2 robins, 3 blue jays, and 5 cardinals. How many more birds, in percentage, did Gabrielle saw than Chase?
Gabrielle saw 5 + 4 + 3 = 
<gadget id="calculator">5+4+3</gadget>
<output>12</output>
12 birds.
Chase saw 2 + 3 + 5 = 
<gadget id="calculator">2+3+5</gadget>
<output>10</output>
10 birds.
So, Gabrielle saw 12 - 10 = 
<gadget id="calculator">12-10</gadget>
<output>2</output>
2 more birds than Chase.
Therefore, Gabrielle saw 2/10 x 100% = 20% more birds than Chase.

<result>20</result>