Combat Stamina EXP/ Drop Rates and Penalty for Ragnarok Mobile Eternal Love

Ragnarok Mobile Eternal Love has a Fatigue System to prevent overgrinding or abusing afk grind.



Combat Stamina EXP/ Drop Rates Ratio to the Combat Stamina Used.
0-300 (360 Max Music) Stamina = (100% Exp & Drop Rates for Non Premium)|(133% Premium).
310 (370 Max Music) Stamina = (94% Exp & Drop Rates for Non Premium)|(98% for Premium).
330 (390 Max Music) Stamina = (83% Exp & Drop Rates for Non Premium)|(87% for Premium).
350 (410 Max Music) Stamina = (72% Exp & Drop Rates for Non Premium)|(75% for Premium).
370 (430 Max Music) Stamina = (61% Exp & Drop Rates for Non Premium)|(64% for Premium).
390 (450 Max Music) Stamina = (50% Exp & Drop Rates for Non Premium)|(52% for Premium).
410 (470 Max Music) Stamina = (39% Exp & Drop Rates for Non Premium)|(41% for Premium).
430 (490 Max Music) Stamina = (28% Exp & Drop Rates for Non Premium)|(29% for Premium).
450 (510 Max Music) Stamina = (17% Exp & Drop Rates for Non Premium)|(18% for Premium).
470 (530 Max Music) Stamina = (6% Exp & Drop Rates for Non Premium)|(6% for Premium).
480 (540 Max Music) Stamina = Red Stamina.

You also need to include the EXP Rate penalty if you're level is greater or less than 10 and above.

When Monster Level is Higher:
Level Gap 0-10 = 100% Exp & Drop Rates.
Level Gap 11-20 = 80% Exp & Drop Rates.
Level Gap 21+ = 50% Exp & Drop Rates.
When Character Level is Higher:
Level Gap 1-10 = 100% Exp & Drop Rates.
Level Gap 11-15 = 80% Exp & Drop Rates.
Level Gap 16-20 = 60% Exp & Drop Rates.
Level Gap 21-25 = 40% Exp & Drop Rates.
Level Gap 26-30 = 20% Exp & Drop Rates.
Level Gap 31+ = 10% Exp & Drop Rates.

Example:
Your premium character used 450 combat stamina while having extra 60 combat stamina gained from music.

390 (450 Max Music) Stamina = (52% Exp & Drop Rates for Premium).

You are leveling in Ninetail's Payon Cave 2

Nine Tail
Base Exp: 669
Job Exp: 197

Your premium character has a level of 61 while ninetail has 72.

The new Base and Job Exp based from "Level Gap 11-20 = 80% Exp & Drop Rates." is:
669 x 0.8 = 535.2 Base EXP
197 x 0.8 = 157.6

If you are currently at 450 used combat stamina:
535.2 x 0.52 = 276.74 Base EXP
157.6 x 0.52 = 81.95 Job EXP

This information or guide will help you decide if it worth to grind at specific combat stamina used.
You can go for 540 minutes if you want to but you can skip combat stamina and use your extra time to spend more meaningful ways to improve your character.