We will pay 100% of tuition to the value of $2000.
If the tuition is over $2000 we will pay 50% of the tuition above $2000. For example, if the tuition is $2500 - $2000 (we pay 100% up to $2000) = $500 Remaining. We will pay 50% of the remaining $500 = $250 left for the employee to pay.
We will pay a total of $5000 cost to the company. $5000 is the most we will pay. In other words, if the employee wants to study an $8500 course, we will pay $2000 at 100%, 50% of the next $6000 and the remaining $500 will be paid by the employee. This means we would pay $5000 and the employee would pay $3500.