How do I calculate the node width in bytes?

[dseals22]

I am trying to figure out how do I calculate the node width in bytes using the picture I have attached below:

I did show my work as how I calculated the node width in bytes of the picture, but I am not sure if I did it correctly. Any help and online resources would be much appreciated. Thanks! Do you think you can help me @Oralloy?

[imgnothumb]https://bytes.com/attachments/attachment/9246d1504547507/pic-1.jpg[/imgnothumb]

[dseals22]

I figured out the answer to my question. Basically, you would do the following:

1 byte= 8 bits so an integer would have 4 bytes and an double would be 2 times as much, so a double would 8 bytes. So to answer my own question, if you add up the width of the entire node in bytes, it would equal 16 bytes.