The MBA's application index rose to 477.7 during the week, bouncing back ... WASHINGTON (AP) -- Mortgage application volume rose 3.6% during the week ended June 27, according to the trade group Mortgage Bankers Association's weekly application survey. This is also perhaps why brokers charge high for closing fees. A percentage of the closing fee you pay on a mortgage goes to the mortgage broker's personal funds. This, along with a few more fees, stands as their salary.