Sacred:Chance of finding special items
This modifier was changed with the release of Underworld. In the original Sacred & Plus, the modifier found on items was a percentage; in Underworld the value found on items is a number. The values on all equipment pieces are summed and the result is converted to a percent using a non-linear equation. The effects are diminishing in value – the difference between 10 and 20 is greater than that between 60 and 70, for example.
The formula used to convert flat value bonus to % is y = 10*vx
For example, Chance of finding special items +122 yields 110%.
10*sqrt(122) = 10*11,045 = 110,45