Kie is a street vendor selling dumplings from a small stall near a very business train station. The business is very busy with daily sales averaging $15,000 dollars per week. Dumplings are made by Kie's family and delivered daily. Kie he pays his family $30,000 each month for their help.

Explain which inventory method Kie would be more likely to use in his business? Perpetual or Periodic?