Yeah, 25% is what the website says, but that sounds like it includes scholarships. So pretty much every athlete and other scholarships.

They have an estimate tool too

https://college.harvard.edu/financial-aid/net-price-calculator

75k parental income and 10k in assets was enough for it to be 15k/year.

That's a lot of money to a family of four with 1 kid in college.

And Harvard doesn't need a penny of it.