Presented below is information taken from for the three months ended March 31, 2023 in relation to ABC Inc.'s application of retail inventory method. \table[[,Cost,Retail],[Inventory, Jan 1.,300,000,1,200,000],[Purchases,6,000,000,8,500,000],[Purchase returns,380,000,760,000],[Purchase discounts,150,000,],[Purchase allowance,50,000,],[Freight-in,20,000,],[Markups,,600,000],[Markup cancellations,,50,000],[Departmental Transfer-in,600,000,1,100,000],[Departmental Transfer-out,560,000,1,334,000],[Abnormal Loss,20,000,40,000],[Markdown,,316,000],[Markdown cancellations,,100,000],[Sales,,7,000,000],[Sales Returns,,700,000],[Sales allowance and discounts,,],[Normal Shrinkage,,500,000]] Q: Compute the (1) estimated ending inventory; (2) cost of goods sold; (o) inventory shortage using: a. Conservative method b. Average Method c. FIFO Method