To derive HP of a particular adversary, one would take the Base HP Stat of that particular level and multiply it by that adversary's HP base factor and the product would be the adversary's Max HP. For example, a Pink Concerto is always at Level 26 in any normal mission and its HP base Factor is 7.60 and a Level 26 Base HP is 137. 137 * 7.60 = 1041.2 so a Pink Concerto's HP at Level 26 is about 1,041 HP. Using the same example, a Pink Concerto's base DEF factor is 1.40 and a level 26 ATK/DEF stat is 45. 45 * 1.40 = 63 so a Level 26 Pink Concerto's Defense is 63.