Charley's, a local dairy store, maintains milk inventory by the gallon. Charley's uses the periodic inventory system.

The November milk purchases and sales at its Chazy, NY$,$ location are below $($Charley$\text{'}$s starts November with zero inventory$)$:

November $2$: Purchased $7$ gallons at $$2\mathrm{.}00$ each.

November $6$: Purchased $7$ gallons at $$2\mathrm{.}30$ each.

November $8$: Sold $4$ gallons of milk to customers.

November $13$: Purchased $3$ gallons at $$2\mathrm{.}80$ each.

November $14$: Sold $4$ gallons of milk to customers.

Determine the cost of goods sold for November under the FIFO method?