This is the exact score sheet, straight from the online application page.
Your grade in BIOL 2401 or 2402 (A = 4, B = 3, etc) + grade in ENGL 1301 is added together and divided by 2.
These are your HESI sections in the second part of the score.
Each section is out of 100, except for Critical Thinking, which is out of 1000. Add them together and then divide by 25. Then by 5 (for each section) to get your score for part 2.
Add part 1 and 2 together with highest possible score being out of 8.
Example - 4 + 3.345 = 7.345 out of 8
If 2 people happen to have identical scores, they look at the critical thinking score to decide.
Side note!
TCR (Transfer Credits) for English make your score in part 1 completely reliant on your A&P grade/score.