If you brew one pot of coffee a day your average monthly cost is probably about $3-$4 depending
on local energy cost. Annual expenditure can be about $44 assuming the same daily use/cost.
That comes to about 10-14 cents per brew.

To determine the cost of electricity per kilowatt hour in your state, visit the website linked
HERE
or get the cost per kWh from your monthly power bill.
Next, determine the voltage/watts of the the coffee maker.
This information can probably be found on the bottom or back of the machine.

Then use the calculator at the bottom of this page.