Doing some napkin math. It was said that Akron sold out it's suites for the first time in program history. The stadium only has 16 suites available for public sale and one has to assume a number of those were already sold. Let's assume this promotion sold 4, which would be conservative. Let's also assume it sold 50 or so Club Seats. Very possible it could have been more as this promotion brought attention to the program. It's obvious the biggest jump is the GA tickets as people are treating this as a closed $75 lottery. I don't think it's unrealistic if 2,000 "entries" were sold.
Suites 4 X $15,000 = $60,000
Club Seats 50 X $515 = $25,750
GA 2,000 X 75 = $150,000
All totaled that would be ~$236K in direct additional revenue. That's about half of the $500K the school said they wanted the athletic department to erase from the deficit. That's not even factoring in any increases in merchandise, sponsorships, or donations from alumni who now feel more positive about the school and/or program. Not to mention a chunk of those 2,000 are actually alumni or locals. Some amount of them could be persuaded to renew.
Not to mention all the free advertising for the school at a time where seniors are deciding where to send their applications. Not saying anyone would pick Akron based off a promotion, but it might lead a few to give the Akron website a look whereas they didn't consider it before. Then a few of those stumble on a program or something they like.