In 2009, Helen sold property and reported her gain by the installment method. Her basis in the property was $150,000 ($250,000 cost less $100,000 of depreciation). Helen sold the property for $375,000, with $75,000 due on the date of the sale and $300,000 (plus interest at the federal rate) due in 2010. what is Helen's recognized installment sale gain in 2010 ?