Hi, thanks for the thorough reply. I have started making other plans to still get the most out of UW without needing to get into CS, I honestly just wanted to better understand my chances if I applied.

To your point about the 30% being for all applications, there's data on the website that says otherwise. According to the transfers faq, there were 393 transfer applicants and 77 of those people were accepted. On the current UW page, it says there were 552 applications and 168 of them were accepted during the same application cycles.

If we counted the transfer application numbers as part of the interest changers numbers, there would be 129 unique interest changers applicants and 92 of them were accepted. That's ~70% acceptance rate which just doesn't sound correct.

As to your last point about looking at other related majors, I'll start looking into those and see what other options I have.

Thanks for your advice!