Can you use Matrixes to organize this info and write a matrix that gives total and also a change

Question

1996- number of units—CDs:20,779;cassettes:15,299 and music videos: 45.

dollar value—CDs: 268,441; cassettes: 122,329; and music videos:916

1997- number of units- CDs: 26,277; cassettes: 17,799; and music videos: 70

dollar value- CDs: 344,697; cassettes: 144,645; and music videos: 1,260

#1use matrixes to organize the information.

#2 write a matrix that gives the total numbers of units shipped and total values for both years.

#3 write a matrix that gives the change in units shipped and dollar value from 1996 to 1997.

Answer 1

Maybe something like this (Tabular form):

which turns into matrices by stripping out just the numbers. The second matrix would be the same for 1997.

#2 would be like this:

#3 would be a 2 x 1 matrix