On January 1, 2018, EM purchased a patent for a new consumer product for ₱4,800,000. At the time of purchase, the patent was valid for 10 years. However, the patent's useful life was estimated to be...

On January 1, 2018, EM purchased a patent for a new consumer product for ₱4,800,000. At the time of purchase, the patent was valid for 10 years. However, the patent's useful life was estimated to be only 8 years due to the competitive nature of the product. On December 31, 2020, the product was permanently withdrawn from sale under government order because of a potential health hazard in the product. What amount should EM charge against income during 2020, assuming amortization is recorded at the end of the year?