Lincoln Corporation has $$600$ million of debenture bonds outstanding that have an unamortized discount of $$25$ million. Lower interest rates convinced the company to pay off the bonds now by purchasing them on the market where the price of the bonds is $99.$ What is Lincoln's gain or loss on the retirement of the bonds? How would this gain or loss be shown in the financial statements?

What is Lincoln's gain or loss on the retirement of the bonds? $($Use a minus sign or parentheses for a loss.$)$

Gain $($loss$)$ on retirement of bonds

In Millions