GroWell Plantation Bhd (GPB) is a public limited company and has commenced business in Malaysia for more than 40 years. GPB currently owns and manages oil palm estates with a total plantation acreage of 9,000 acres in the state of Pahang, Malaysia. The harvesting process is continuously throughout the financial year to be used in the production of crude palm oil (CPO). GPB has two types of inventories, oil palm fruits and CPO. The financial statements of GPB are prepared under the historical cost convention, except for investment in subsidiaries and biological assets (including agricultural produce) that are measured at revalued amounts of fair values at the end of each reporting period. For the biological assets, fair value is determined based on the present value of expected net cash flows from the assets, while the fair value of agricultural produce is generated from the quoted price from the active market. Below are the incomplete notes to the financial statements for biological assets for the year ended 31 December 2020. < 2 Notes to the financial statements: 10. BIOLOGICAL ASSETS At valuation At 1 January Fair value gain/(loss) At 31 December 2020 (RM) a be 2019 (RM) 1,054,212 (377,256) 676,956 2 2 4 The fair value and cost to sell of the biological assets for the year ended 2020 was RM850,000 and RM98,262, respectively. REQUIRED: (a) Explain why GPB uses a discounted cash flow model to determine the fair value of biological assets. (b) Determine the value of a, b and c that are missing in the notes to the financial statements. (c) Prepare the journal entries to record the fair value gain or loss in 2019 and 2020 for GPB according to MFRS 141 Agriculture.