Tip of the day
The base chance to find FINE materials is 1/100, which you can increase with better gear and tools.

Translations:Quality Outcome (Mechanics)/7/en

From Walkscape Walkthrough

Each recipe has a series of weights that control the percentage chance of each quality. These weights are adjusted by the quality outcome score we'll look at next. For now lets look at an example of unadjusted weights.

Quality Starting
Weight
Minimum
Weight
Starting
Percentage
Chance
Normal 1000 4 79.20%
Good 200 4 15.84%
Great 50 4 3.96%
Excellent 10 4 0.79%
Perfect 2.5 2 0.20%
Eternal 0.05 0.05 ~0.004%