Your Guide to HP and MP

It's been pointed out that in the Q&A for AP it's job base + 0.075*int. So taking the example from warriors.

HP/level: 24-28 +(Improving Max HP Increase)
MP/level: 4-6 +(Total INT/10)

HP/AP: 20-24 +(Improving Max HP Increase)
MP/AP: 2-4

Can also be rewritten as:
HP/level: 24-28 +(Improving Max HP Increase)
MP/level: 4-6 +(Total INT x 0.1)

HP/AP: 20-24 +(Improving Max HP Increase)
MP/AP: 2-4 + (Total INT x 0.075)