pls help me to show work including how to do it

Run Co. sells athletic shoes. The following is cost and net realizable value (NRV) information for inventory at December 31, 2020: Item Units Unit cost Unit NRV Nike 25 $101 $205 14 Saucony Under Armour $191 $147 53 $261 $261 Required: 1. Calculate the December 31, 2020 inventory balance using the lower of cost and net realizable value for each item. [3 marks] 2. List three internal control procedures which Run Co. can use to manage inventory? marks]