Unfortunately, it's not that simple. My son is class of 28 and we chose fixed back in 2024 with the assumption that tuition would jump once the original tuition freeze from 2023 to 2025 elapsed.
But then tuition was frozen again through the 26/27 school year so, we likely would have come out ahead choosing the lower initial cost of variable unless it skyrockets for 27/28 (assuming it is not frozen yet again).