Demin $2 mil ($1.5 Mill earning $500k for Madrid buy out) (this number was leaked)
Hall $250,000 (Hall and Saunders made more because they went to the transfer portal and Saunders is higher than Hall because UK wanted Saunders)
Saunders $300,000
Catchings $400,000 (I'm betting some teams threw money at Catchings when he left Purdue so BYU had to be in the ball park)
Mag $100,000 (Idk what the market is for a transfer who struggles shooting the three pointer but I'm guessing it's on the lower side)
Keita $200,000 (There was some competition for Keita when he came to BYU, but in the end he came for Burgess and Fouss. This number could be higher)
Knell $60,000 (Never entered the transfer portal so this number is low)
Crawford $90,000 (Random guess for a 3-4 star freshman)
Koswolski $50,000 (Random guess for a 3-4 star freshman with BYU connections)
Boskovic $150,000 (He was making Euro league money before coming to BYU. I'm assuming he still wants a Euroleague salary or close)
Fouss $80,000 (Never entered the transfer portal so this number is low)

So around 3.6 million

Let me repeat that this is completely random guessing.