Given the table that shows the dozen muffins made and sold, you can identify that the total number of dozen made is:
And the total number of muffins sold is:
In order to find the percent of the muffins that youth group members made and did not sell, you need to subtract the quantities:
And then divide the total number of muffins made by the total number of muffins that they did not sell. Then, multiply it by 100 to write it as a percentage:
Hence, the answer is: