I suggest listening carefully to SL broadcast of 5/15 and 1/16. He also explains where is the money from the sake of property.
According to SL, the contributions at the KH mostly finance WT and contributions don't cover operating expenses. Contributions is wt only source of income. WT is not going to tithe or collect taxes for sales. They will have to manage with the contributions by cutting expenses and selling assets. That is what they are doing. But for how long?