New World Resources
The basis for this increase in yield is calculated by 4 factors:
- The base chance for that tier to create extra items.
- The skill level divided by a factor of 10.
- The refining material used.
- The difference in tier between the refining material used and the final product. Mathematically this looks like this:
(RefiningSkill/10)+(BonusItemChance*100)+(TierDifferenceAmount*100)
(100/10)+(-0.02*100)+(0.5*100)=58%