This seems to align with what the article says in: "[...] it is estimated that the Germanic element makes up some 70 to 75% of the overall lexicon [...]" and:

This seems to align with what the article says in: "[...] it is estimated that the Germanic element makes up some 70 to 75% of the overall lexicon [...]" and: "[...] note that early Yiddish developed from Middle High German dialects [...]"