New numbers from Zillow show that average home values in Oakland have been going down. According to the Zillow Home Values Index, which factors in data from all types of homes, the average home value in Oakland is $716,248 as of March 31 of this year. Factoring in inflation, that is down 11.4% from the same time last year and 28.1% from 2019. Analysis of the data by the San Francisco Chronicle also found that Oakland was tied with Cape Coral, Fl…