acer uses the conventional retail method to determine its ending inventory at cost. assume the beginning inventory at cost (retail) were $390,000 ($594,000), purchases during the current year at cost (retail) were $2,055,000 ($3,300,000), freight-in on these purchases totaled $129,000, sales during the current year totaled $3,000,000, and net markups (markdowns) were $72,000 ($108,000). what is the ending inventory value at cost? group of answer choices $556,842. $580,206. $858,000. $567,138.