Your answer is 83% of the carton.
10 of the eggs are not cracked.
12=100%
6=50%
2=approx. 17%
If 2 of 12 eggs are cracked that makes 10/12 eggs uncracked.
10 : 12 = x :100%
12x = 10 x 100
x = 1000/12
x = 83.33
So, your answer is that about 83 percent of the carton is uncracked