Experience yield (mmrpgorigin)

y₁= [(ST/10) * (1 + t/(d/3))]ai

y₂= {[(ST/20) * (1 + t/(d/3))] + [1 + L(ST/50]}ai

ST = Stat Total
t = turns passed in battle
d = damage taken by player
L = level of enemy
a = If it's a player, 1.5x, if it's a computer-controlled enemy, 1
i = Multipliers from items

ex: A Liontamer defeats a player-controlled Peasant with a stat total of 200. The Peasant was defeated in 9 turns, but inflicted 23 damage before being defeated. The Peasant's level is 1, and the Liontamer is holding no items to boost exp

y₁= [(200/10) * (1 + 9/(23/3))]1.5
(20 * 2.17)1.5
(43)1.5
y₁= 65 experience

y₂=  {[(200/20) * (1 + 9/(23/3))] + [1 + 1(200/50]}1.5
[(10 * 2.17) + (5)]1.5
(22 + 5)1.5
(27)1.5
y₂= 41 experience

ex2: A Nurse defeats a player-controlled Peasant with a stat total of 500. The Peasant was defeated in 14 turns, but inflicted 20 damage before being defeated. The Peasant's level is 34, and the Nurse has a ring that grants them a 10% exp boost.

y₁= [(500/10) * (1 + 14/(20/3))](1.5 * 1.1)
(50 * 2.1)1.65
173
y₁= 173 experience

y₂= {[(500/20) * (1 + 14/(20/3))] + [1 + 34(500/50]}1.65
[(25 * 2.1) + (341)]1.65
[(52) + (341)]1.65
(393)1.65
649

y₂= 649 experience


Conclusion: Equation 1 will grant more experience initially, but Equation 2 will grant more experience when enemies start getting into higher levels.

*Edit: Equation changed to {[(ST/18.5) * (1 + t/(d/1.65)] + [1 + L(ST/50]}ai