cent percent?
Is it right to say "cent percent" instead of "100%"

Question

Answer

'cent' is french for a hundred! In English 100% = one/a hundred percent.

Answer

For standard English, it's heading towards confusion.  "Cent" is 1/100 of a dollar, so that's the first thing I think of when I read "cent percent".  I do realise "cent" is also French for "hundred", but you're more likely to confuse the reader. "A hundred percent" is absolutely clear.

Answer

No, it is not.