Mana to advance a Magic Level
These formulas allow you to calculate how long it takes to reach a Magic Level. For all formulas:
y is the time required to reach a magic level in hours;
x is the current magic level;
z is the percentage for the next Magic Level in decimal form (example, 47% is written 0.47).
For Sorcerers and Druids:
y = [(1600*1.1^x)*z]/2400
For Master Sorcerers and Elder Druids:
y=[(1600*1.1^x)*z]/3600
For Knights and Elite Knights:
y=[(1600*3^x)*z]/1200
For Paladins:
y=[(1600*1.4^x)*z]/1800
For Royal Paladins:
y=[(1600*1.4^x)*z]/2400
Source :
(https://tibia.fandom.com/wiki/Formulae)