Metlock, Inc. uses a periodic inventory system Details for the inventory account for the month of January 2022 are as follows: Balance 1/1/2022 Purchase, 1/15/2022 Purchase. 1/28/2022 Units 270 140 140 Per unit price $5 S S Total $1350 700 700 An end of the month (1/31/2022) inventory showed that 220 units were on hand. How many units did the company sell in January 20222 O 230 O 80 O 270 220