“…Kafi et al (2019) predicted the closing price of Company X shares using the Markov Chain method and (Novitasari et al, 2019) predicted the number of sunspots to identify flares using the Markov Chain method. In 2020, (Alyousifi et al, 2020) predicted the daily basis air pollution index in Malaysia using the Markov Chain method, (Arnita et al, 2020) predicted rainfall in Medan using Chen, Cheng, and Markov Chain method, (Bettiza, 2020) predicted Indonesia's total population using Chen, Cheng and Markov Chain method, (Ramadani and Devianto, 2020) predicted bitcoin prices using Chen and Markov Chain methods and (Taufik et al, 2020), predicted gold prices in Indonesia using Markov Chain method. Ariyanto et al (2021) predicted the sales at PT Y as an improving method to get the cheapest storage cost possible using the Chen method, (Boechel et al, 2021), predicted the apple tree phenological stages using the Chen method, (Rizqon and Jati, 2021), predicted train passengers' numbers in Indonesia using Chen method and (Wirawan et al, 2021), predicted the chili prices in Indonesia using Chen and Cheng methods.…”