P 5-2 Computations (upstream sales) Pop Corporation acquired a 90 percent interest in Son Corporation at book value on January 1, 2016. Intercompany purchases and sales and inventory data for 2016, 2017, and 2018, are as follows: Intercompany Profit in Pop's Inventory at December 31 Sales by Son to Pop 2016 2017 2018 S200,000 150,000 300,000 $15,000 2,000 24,000 Selected data from the financial statements of Pop and Son at and for the year ended December 31, 2018, are as follows: Pop Son Income Statement Sales Cost of sales S900,000 625,000 $600,000 300,000