Vaughn Company started operations on January 1, 2012, and has used the FIFO method of inventory valuation since its inception. In 2018, it decides to switch to the average-cost method. Y provided with the following information. Net Income Retained Earnings (Ending Balance) Under FIFO Under Average-Cost Under FIFO 2012 2013 2014 2015 2016 2017 $106,100 73,400 84,200 128,900 274,500 312,800 $96,000 68,100 75,000 138,100 264,600 318,100 $90,500 159,400 216,900 352,400 647,200 709,200 (a) What is the beginning retained earnings balance at January 1, 2014, if Vaughn prepares comparative financial statements starting in 2014? Retained earnings, January 1 g (b) What is the beginning retained earnings balance at January 1, 2017, if Vaughn prepares comparative financial statements starting in 2017? Retained earnings, January 1 + (c) What is the beginning retained earnings balance at January 1, 2018, if Vaughn prepares single-period financial statements for 2018? Retained earnings, January 15 (d) What is the net income reported by Vaughn in the 2017 income statement if it prepares comparative financial statements starting with 2015? 2015 2016 2017 Net Income s