@Elenacoudreau
Generally speaking the ECF (early cancellation fee) for breaking your contract before 24 months is based on your device subsidy. If you port out in any month before the 24th month begins you will owe the remaining months device subsidy+taxes on the full retail price of the device set by the provider. You would also want to review your contract to see if you also forfeit any "gifts" or other incentives you may have recieved when you agreed to the contract (such as gift cards or points).
The only time that breaking your contract is advantageous to you is in the final month (24th) of your contract. Once you pay your 23rd month's bill in full and if you port out in the first couple of days of your final month then the plan portion of your bill is pro-rated.
(If you port out on day 2 and your plan is $60/month then $60÷30 days=$2/day×2 days=$4 plan costs).
The WCC considers any portion of a device subsidy for a month a full month's payment so if you port out on day 2 of your final month the pro-rated device subsidy is sufficient to pay off the device subsidy for the entire 24 month contract.
(Porting out on day 2 with a $30/month device subsidy=$30÷30 days=$1/day×2 days=$2)
With this example your final pro-rated bill for your 24th and final month of your contract would be $4+$2=$6+tax and any additional charges such as long distance calls etc...
