Is the increased deferred price in Bay' al-Muajjil Riba?

Salaam,
Thank you for the opportunity to post on this forum. My question is if an additional amount is charged for the deferred payment in installments in Bay’ al-Muajjil, is that considered Riba? Both the spot price and increased deferred installments price are decided at the time of the sale. I have read both opinions and was hence looking for the opinions of the scholars/experts on this forum.
The specific situation is the tuition fees for a given year. If the full amount is paid upfront, the university is charging a certain amount. If the student is given the option to pay in installments, they are adding on a “1.1% interest charge”.
My question is: Is this really interest?
Jazak Allah khayr.

Wa alaykum salaam,

No, an increased price in a deferred sale is not Riba.

Allah knows best

Thank you very much for your kind response.