However, the 44.6% was the category of "respondents reported knowledge of Honor Code violations that they chose not to report," and the 0.4% was the category of "had reported a peer for an Honor Code violation."
Everybody who saw a violation was in one of those two categories (did report or didn't report), so we can compare them to see what percent of people who saw honor code violations did, and the answer is that >99% of them failed to uphold their pledge.
The 44.6% appears to refer to the proportion of respondents who saw a violation and did not report it.
- 0.4% saw and reported
- 44.6% saw and did not report
- 55% did not see (but may have erroneously reported, though that seems unlikely)
If this is correct, 44.6% of respondents are in breach of the honor code. If we assume that the non-witnesses behave similarly to the witnesses, 99.111% of the students do not ‘honor’ the code.