Can anyone help me put my weeks purchase to suply and demand?

Question

Conclude your diary with a brief reflection of what you learned about demand and supply from keeping track of your purchases.

cvs- $31.22

Michaels- $20.88

7 eleven- $9.13

Shell Oil- $60.00

Subway- $8.49

Petsmart- $15.74

Answer 1

Supply and demand would be related to, what you paid and how the price reflect it. Did the price go up because demand was up.

Answer 2

Well it just says that your total expenditures were $145.46

Or in more details:

Name........$.....Share

CVS.........31.22.....21.5%

Michaels..20.88.....14.4%

7Eleven.....9.13......6.3%

Shell.......60.00.....41.2%

Subway.....8.49......5.8%

Petsmart.15.74.....10.8%

Total.......145.46.....100%