In a recent answer on the Q&A forum, user “Paper Airplane” wrote:

LOL. If you didn’t know, you should’ve Googled the 80/20 Pareto principle before asking. If you know the Pareto principle, you can understand it after reading it once. The Pareto principle means that the numbers “80:20” aren’t absolute—they’re merely symbolic figures representing the tendency for most results to be produced by only a small portion of the whole. Most likely, around the top 20% of women receive roughly 80% of the offers. So, well, about 70% of women probably aren’t having much fun, since they get few or no offers.

As Kazu wrote, about 70% can be inferred from the wording of the question. If you look up the 80/20 rule, you’ll find plenty of information about it. I think it applies to many different things as well. For example, 20% of women receive 80% of the offers… It seems that, among both men and women, around 20% are having the kind of relationships they want. The club is supported by repeated offers from the 70–80% of men who aren’t succeeding, while the club remains popular with women thanks to the 20–30% of men who are able to have the relationships they want and no longer need to make offers. Those successful men lead to referrals and word of mouth from women. To explain why I’m bringing this up: Women receive many offers at first, so unless they’re exceptionally popular, that attention usually only lasts in the beginning. I’m writing this because I feel it would be a shame—for both women and men—to miss out on those early encounters, and I want to convey how severe that reality can be. For us men to continue using the club for a long time, the club also needs to remain popular with women. It needs to maintain its reputation as a good club where women can achieve what they’re looking for. In the long run, I believe that ultimately benefits us too—when we eventually need new offers or new encounters in the future.

I think it’s based on the wording of the question. Also, I recommend reading Kamihikōki’s answers for the overall impression rather than focusing too much on the details.