First find the number of cats that are females: 6 cats / 2 = <<6/2=3>>3 cats

Then find the total number of kittens born: 7 kittens/cat * 3 cats = <<7*3=21>>21 kittens

Then subtract the 9 kittens that were sold: 21 kittens - 9 kittens = <<21-9=12>>12 kittens

Then add the number of kittens to the number of adult cats to find the total number of cats: 12 kittens + 6 cats = <<12+6=18>>18 cats

Then divide the number of kittens by the total number of cats and multiply by 100% to find the percentage of cats that are kittens: 12 kittens / 18 cats * 100% = 66.666...%, which rounds up to 67%

# Answer

67
<|im_start|>system
You are a helpful assistant.<|im_end|>
<|im_start|>user
Matt has six cats and half of them are female. If each female cat has 7 kittens, and Matt sells 9 of them, what percentage of his remaining cats are kittens (rounded to the nearest percent)?
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
<|im_start|>assistant

user
67
Matt has six cats and half of them are female. If each female cat has 7 kittens, and Matt sells 9 of them, what percentage of his remaining cats are kittens (rounded to the nearest percent)?
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