Straight from the Disney contract - typing errors are mine as I had to retype it:
Cancellation of Reservation - if the reservation is cancelled amounts paid, minus cancellation fees, vacation insurance premium, and other amounts owed, will be refunded. For a cancellation made 44 to 7 days prior to guest arrival, there is a cancellation fee of $100 per package, plus any cancellation fees assessed by third party hotels or other suppiers. For a cancellation made 6 days or less prior to guest arrival there is a cancellation fee of $200 per package, plus any cancellation fees assessed by third party hotels or other suppliers.
So basically between 7 to 44 days out the cancellation fee is $100. After that 6 days or less the fee is $200.