I did not see a score change going from 9% total util with 11% on a single card to 1% total util and 1% on a single card. I dodnt know if there is a score hit on being maxed out on a single card but total util is under 10%.
IMHO going from 80% to 40% would not take a score hit but I dont know if you would see a score increase. Is the old 80% account being closed? If so you could take a score hit on loosing account age. If you could go from 40% to 9% total util, you would see a very nice score boost.
1/25/2021: FICO 850 EQ 848 TU 847 EX