Blue Spruce Corp. uses a periodic inventory system. Details for the inventory account for the month of January 2017 are as follows: Units Per unit price Total Balance, 1/1/2017 350 $6.00 $2100 Purchase, 1/15/2017 170 ..6.10 1037 Purchase, 1/28/2017 170 ..6.40 1088 An end of the month (1/31/2017) inventory showed that 280 units were on hand. How many units did the company sell during January 2017?
