Declining interest rates forced mortgage bankers to lower the fair market value of their mortgage servicing rights during the second quarter, according to a new analysis of bank call-report data by Inside Mortgage Trends. Banks reported a total of $5.607 trillion of mortgage servicing for others as of the end of June, a 3.1 percent decline from the previous quarter. That represented about 81.8 percent of the total mortgage servicing outstanding that was tied to agency and non-agency ... [Includes one data chart]