Have a look at the example item of the Wikidata property at https://www.wikidata.org/wiki/Property:P2665. When viewing it, it says that Abzinth has an alcohol percentage of 70+-30% (40-100%). But when editing the property, 65+-25% (40-90%) was entered. Looks like some strange rounding is going on.
Description
Description
Related Objects
Related Objects