If you add a real estate Holding, you can locate it on Google Maps and include the details of the mortgage - if you have one. If you do, Exirio automatically includes your mortgage-related costs in the calculation of your investment metrics, which are computed for the equity component of the investment. The equity in the property investment is your own money in the property, not the full value of the property which and on Exirio it is called Net Property Value

For example, if you bought a property for USD 1M and got a mortgage for USD 800,000 - then the Net Property Value is USD 200,000.

Exirio's mortgage calculator also reduces automatically the balance of your Mortgage over time, to take into account the capital repayment component of your monthly payments. 

If your Mortgage is higher than the purchase price of your property, MWR will be shown as N/A until the NPV turns positive (through mortgage repayment or additional Deposits into the the property).