When all of these were rented, the gross monthly income was seven hundred and twenty-eight dollars.

At this time, however, six were vacant, bringing down the gross receipts per month to five hundred and sixty dollars.

The expenses, which included water, commissions for collecting, repairs, taxes, interest on insurance, etc., when expressed in the terms of a monthly average, amounted to one hundred and eighty-six dollars.
"Well, now, let's see," said Vandover, figuring on his cuff, "one hundred and eighty-six from five hundred and sixty leaves me a net monthly income of three hundred and eighty-four--no, seventy-four.

Three hundred and seventy-four dollars." The lawyer shook his head while he drank another glass of hot water: "You see," he said, wiping his moustache in the hollow of his palm, "you see, we haven't figured on the mortgages yet." "Mortgages ?" echoed Vandover.
"Yes," answered Mr.Field, "when I spoke of expenses I was basing them upon the monthly statements of Adams & Brunt, your father's agents.

But they never looked after the mortgages.