Seven $\backslash (\backslash$$ $10,000,5\mathrm{.}8\backslash \%\backslash )$ bonds with semi$-$annually coupons redeemable at par on March $25,2023,$ were bought on February $11,2005,$ to yield $\backslash (5\mathrm{.}5\backslash \%\backslash )$ compounded semi$-$annually. The bonds were sold on December $02,2014,$ at $94\mathrm{.}75.$ Find the gain or loss on the sale of the bonds without constructing a bond schedule.