Philly started a new business of selling cellular phones. His transections for the month are summarized below; May 1 purchased 10 phones for $100 each May 5 purchased 10 phones for $120 each May 8 sold 5 phones for $150 each May 10 sold 10 phones on credit for $150 each May 20 purchased 10 phones for $140 each May 30 sold 10 phones for $150 each Record all the transections in stock ledger cards using three methods of inventory control, i.e. LIFO, FIFO and AVCO. You are also to calculate profit under each system. Out of three recording method which gives the highest profit