Additional years license and update subscription are half the price of the actual first years fee.
So, there is the initial year 50% off fee for being a Educational/Non-profit, and then additional years after the first are 50% off of that fee?
So if the normal fee were 1000.
The Educational price would be 500.
And second and third years would be 250 each?
(These numbers mean nothing specifically they were just easy to calculate.)