Exp Exchange Rate

Tier	Exp	Warrior		Rogue		Mage		Poet
1	10m	300	70	215	115	90	175	120	120
2	25m	600	140	430	230	180	350	240	240
3	50m	900	210	645	345	270	525	360	360
4	75m	1200	280	860	460	360	700	480	480
5	100m	1500	350	1075	575	450	875	600	600
6	125m	1725	400	1230	655	512	1010	700	700
7	150m	1950	450	1385	735	575	1145	800	800
8	175m	2175	500	1540	815	637	1280	900	900
9	200m	2400	550	1700	900	700	1415	1000	1000

You can't go to next Tier before you fulfill the HP and MP requirement in your current Tier.