Maps 'home' location is wrong, but 'home' in contacts is correct on map
Slightly odd scenario but if I choose to navigate from my current location to 'home' the maps app will take me to the wrong location (although not far away) - if however I choose to navigate to myself via contacts the location pin is dropped in the correct place!
So my question is really - is the 'home' location based on the address you enter in your contact profile, or is it determined through other means?!
If I can alter the location - how can I go about doing this?
iPhone 5, iOS 6.1.4