On March 1, the ledger showed a beginning balance of Merchandise inventory at P68,000. On March 5, Electronix Trading acquired goods with an invoice price of P40,000; Term 2/10, n/30, FOB shipping point. On March 6, Electronix returned defective goods amounting to P2,000. Freight costs of P200 on the March 5 shipment were paid by the seller and sent a debit memo to Electronix on March 8. Full payment was made by Electronix on March 14. On March 16, Electronix sold merchandise to Hyco Co. with an invoice price of P24,000, Term 1/10, n/20. Cost of merchandise sold to Hyco Co. is 50% of its invoice price. On March 18, Hyco Co. returned some items due to wrong specifications with an invoice price of P1,000. On March 25, Electronix collected in full the account of Hyco Co. If Electronix Trading is using perpetual inventory system, the balance of Merchandise Inventory on March 31 is