Feel better, American taxpayers: Citigroup, which received $45 billion in bailout money, has reported a first quarter profit of $1.6 billion. However, Dealbook reports, "The earnings were helped by an accounting change that allowed the bank to post a one-time gain of $2.5 billion... Under the rule, companies are allowed to record any declines in the market value of their debt as an unrealized gain." ( You may remember that besides a $20 billion infusion from the government in November, it was only in February when the U.S. increased its stake in Citi to about 36%.) Some analysts are still worried about the financial firm's ability to retain top executives as well as their credit-default swaps. Citi's stock is up in pre-market trading.