Carolyn counts 6 monkeys and 6 birds in the tree outside her window. Then two of the monkeys each eat one bird. What percent of the animals outside her window are monkeys now?
First find the new number of birds: 6 birds - 2 birds = 
<gadget id="calculator">6-2</gadget>
<output>4</output>
4 birds.
Then find the new total number of animals: 6 monkeys + 4 birds = 
<gadget id="calculator">6+4</gadget>
<output>10</output>
10 animals.
Then divide the number of monkeys by the number of animals and multiply by 100% to express the answer as a percentage: 6 monkeys / 10 animals * 100% = 60%

<result>60</result>