Please help me on this question. What is the chicken saying in the last panel of the attached picture?

Answer:
12.6 kilograms
Step-by-step explanation:
I was going to go with 4. somethin until i noticed that in all of the pictures there are only 2 chickens so on the last picture instead of going down 2 you would go up two from the first picture.
Hope this helps. Btw it is just an educated guess.
Answer:
Step-by-step explanation:
Let the weight of each chicken be:
In the pictures we have:
Add all together:
The chicken in the last panel says 12.6 kg
The answer is 12.6 kg