@Zane Bradshaw Great questions! No need to apologize for wanting to learn. The formula is used to determine your Max Allowable Offer or MAO to the seller. Most investers want to buy a property for 70% of the After Repair Value or ARV so they can get at profit . You make money when you buy. In my original post I was trying to calculate how much to offer to a home owner to buy their house. I determined the ARV by comparing similar houses in the area that have sold within the last 6 months. Similar in size, bedrooms, bathrooms, street and any other unique features. Because I live in an expensive market, the formula doesn't quite apply to me. This formula is more of a base line and the percentage can range between 60% - 80% depending on the market and the condition of the property.
Hope this helps! Keep asking questions!
Also, @Russell Brazil The property is in Petworth. Good guess! Thanks for your feedback, I think I'm starting to get it now :)