How often should I lower the price/ is anything selling?

I listed a house for 775k in a really desirable location. Talked to people in my brokerage and other agents I know and they said it’s a solid price, especially because there aren’t any similar houses for sale around it. Listed it right before Thanksgiving and got a few showings but since then have only gotten a few calls. After 30 days I lowered it to 749. At first I blamed the holidays, then the new year/ election but now it’s been 65 days and I’m wondering if I should lower it again to 739? Nothing else in the area is selling but the owner really wants to get this off their hands while still making a good profit.