For those who are bad at math words like I am and didn’t click through to your link, I want to note that you mean, “they cut risk to 25 percent of the original risk”, not “they reduce risk by 25 percent” :-) (I thought you meant the latter till I clicked through)
If you can afford them, the rapid tests are a great idea: microCOVID doesn’t model them, but I believe they cut your risk by about a factor of 4.
I don’t think rapid tests are worth it here; see the follow-up.
For those who are bad at math words like I am and didn’t click through to your link, I want to note that you mean, “they cut risk to 25 percent of the original risk”, not “they reduce risk by 25 percent” :-) (I thought you meant the latter till I clicked through)