Job Advancement HP/MP gains

Code:

ISkill improvingMaxMP = SkillFactory.getSkill(2000001);
int improvingMaxMPLevel = getSkillLevel(improvingMaxMP);
if (job == MapleJob.BEGINNER) {
        maxhp += rand(12, 16);
        maxmp += rand(10, 12);
} else if (job.isA(MapleJob.WARRIOR)) {
        improvingMaxHP = SkillFactory.getSkill(1000001);
        improvingMaxHPLevel = getSkillLevel(improvingMaxHP);
        maxhp += rand(24, 28);
        maxmp += rand(4, 6);
} else if (job.isA(MapleJob.MAGICIAN)) {
        maxhp += rand(10, 14);
        maxmp += rand(22, 24);
} else if (job.isA(MapleJob.BOWMAN) || job.isA(MapleJob.THIEF)) {
        maxhp += rand(20, 24);
        maxmp += rand(14, 16);
} else if (job.isA(MapleJob.PIRATE)) {
        improvingMaxHP = SkillFactory.getSkill(5100000);
        improvingMaxHPLevel = getSkillLevel(improvingMaxHP);
        maxhp += rand(22, 28);
        maxmp += rand(18, 23);
}
//For Warriors/Pirates/Magicians, the extra HP/MP from their Improving Max HP/MP skills are added at the end

 

Do you think that you are missing any MP?

Below are my calculations (assuming you didn't add any AP into INT/MP and aren't wearing any int/mp equip):
At Level 1, you start with 5 MP
For 9 Levels as a Beginner, you gain ~11 MP/Level
First Job Advancement for Thief does not add any MP
Second Job Advancement for Thief adds ~175 MP
For 28 Levels as a Thief/Assassin, you gain ~15 MP/Level

If you add up 5+(11*9)+175+(15*28), you get 699, which means you're actually slightly doing better than the average.

Note that you also gain 1 MP per level up for every 10 INT you have (either base or from equips) rounded down, so if you have at least 10 INT, you may get a small bump per level.