Not much relevance. It just means when calculating the block reward you calculate with 365
.2424 days to express one year. It doesn't mean that "the actual interest rate hardcoded into the count is approx 0.2424 pct a day".
Out of context that can be misinterpreted. To explain fully, your interest rate is the daily pct * Days Held * reward pct.
With Reward pct being an array {100.00, 97.54, 95.93, 94.35, 92.78, 91.24, 89.72, etc.. } and being the first entry if transaction occurred in month 1, the second in month 2, etc... with the month being calculated as the transaction's previous block height / 43836