2. The following information was extracted from the book of Peca Sdn. Bhd. in the year 2020: Date Detail Jan 1 Beginning inventory: 400 units at RM4.00 per unit Feb 15 Purchase 500 units at RM4.20 per unit Mar 18 Sold 450 units at RM5.50 per unit May 2 Sold 300 units at RM5.60 per unit June 30 Purchase 500 units at RM4.90 per unit You are required to: (a) Calculate the gross profit using periodical method (without store ledger card): (Note: Show all relevant workings) (1). Weighted Average valuation method (ii) Last In first out method (iii) First In First Out method (b) Prepare journal entries under LIFO method from Jan 1 until Mar 18