Would you believe the U.S. Department of Justice? Because, according to this report, it's even less than 1%: https://www.bjs.gov/content/pub/pdf/fvsv9410.pdf

Table 1 shows that, between 2005 and 2010, there was an average of 2.1 victims per 1.000 females. This means that there was around 1 rapist every 500 men, i.e. 0.2%.

If you don't believe the data, well, you could make up numbers - just like most feminist propaganda does.