So the PenFed EWP for a certificate greater than 6 month is equal to 30% of what would have been earned if the certificate had reached maturity, not to exceed total dividends earned. Let's say you wanted to cash in a 5-yr certificate on day one of the 4th year, how much interest do you think you would lose? Is it 30% of one year of interest remaining in the certificate or is it 30% of the entire 5 years of interest earned from the certificate?
Answers

I don't see the problem or any ambiguity. Ken Tumin has written about this on numerous occasions. On February 1, 2018, after quoting the language of the penalty, he wrote:
"_As you can see_, the EWP is harsh. For a 5-year term, 30% of total dividends is 18 months’ interest." (emphasis added)
(article -- "CD Rates Up at PenFed But There Are No Rate Leaders")
I agree with Ken Tumin -- it's easy to see.

For example, if someone closes the certificate one week before the maturity date, they would lose 1.5 years of interest, _not_ 2.1 days of interest.
My apologies
