DiHybrid Crosses, how to get Possible Combinations?

Hello, happy to be part of these help forums.

Firstly, hardest puzzle ever to register on these forums. WOW. Took me 30 minute to figure out the pictures need to be correctly positioned down to up, not facing vertically from left to right.

Okay now for the question, haha. So I'm having troubles with dihybrid crosses. I understand the concept of actually making the 4x4 table and what not, say, YyRr x YYRr, I use the 1 -> 1 -> 4 and 2 ->3 2->4 rule for each cross and then make a table, and get the combinations, but for the phenotypical ratio I get confused.and for the % (my teacher ask for a percent too).

Say we have:




How does one get from: 1BBAA : 1BBaa : 1bbAA : 1bbaa : 2BbAA : 2Bbaa : 2BBAa : 2bbAa : 4BbAa

to

9 Brown Eyes with Free Earlobes : 3 Blue Eyes with Free Earlobes : 3 Brown Eyes with Attached Earlobes : 1 Blue Eyes with Attached Earlobes

Do you group dominants & recessives together or something? What would be the % here?

It's my first year taking Biology and I don't want to mess up on my End of Course Exam.

Thanks.