Answer:
a.) Gross Profit Rate..
6 smartphones at prices of 18,000 unit
=18,000 (6) =108,000
6 remaining phones at price of 12,000 /unit
=12,000 (6) =72,000
Total Net Sales=108,000+72,000
=180,000
Less of Cost Sales =190,000
Gross Profit = 180,000-190,000=-10,000
Gross Profit Rate= Gross Profit
/Net Sales
=-10,000
/ 180,000
Gross Profit Rate= 5.56%