TROPICAL CORP. BILLS ITS BRANCH FOR merchandise shipments at 125% of cost. As of cut-off date on December 31, the following data are available: Mdse. From HO @ BP Outside Purchases December 1 300,000 120,000 Dec. additions 450,000 360,000 Dec. 31 420,000 150,000 The branch returned merchandise to the home office at P15,000 billed price. As a result of branch sales for the month of December, how much portion of the allowance for overvaluation that was realized as income