Extract numerical percentage from string containing multiple numbers

I want to extract a numerical percentage in a string. Here are some cases:

• input: "Bank ABC 123% CDE" -> output: 123.00 (as a float)
• input: "Some random bank IPCA + 12,34%" -> output: 12.34
• input: "Bank1 2,3%" -> output: 2.3

Commas are used solely as separators and there's only one percentage for each string, so the following strings will never occur:

• invalid input: "Bank ABC, 123%"
• invalid input: "Bank ABC 123% and 12,34%"

Currently, I'm using the following script in Python

def extract_percentage(x: str) -> float:   float((re.sub(r'[^\d,]', '', x)).replace(',','.'))

It works for the first two examples above, but for the third, the output is 12.3

How should I do it? Preferably, using Python.