Masonry Concrete Sales Forecasting Using ARIMA and SARIMA Methods for Production Planning
Peramalan Penjualan Beton Masonry Menggunakan Metode ARIMA Dan SARIMA Untuk Perencanaan Produksi
DOI:
https://doi.org/10.21070/ups.4383Keywords:
Forecasting, Arima, Sarima, Productions PlanningAbstract
PT. Varia Usaha Beton which produces various kinds of concrete products such as ready-mix concrete, precast concrete, masonry concrete, crushed stone, construction services and equipment rental services. . Demand continues to fluctuate, thus affecting the readiness and availability of product stock, so it is necessary to make forecasts. So, what are the results of forecasting sales of masonry concrete products if the ARIMA method is used. And what is the accuracy of the forecasting results from the ARIMA method. Will it produce a lower error value compared to other methods such as SARIMA. The purpose of this research is to predict the number of sales requests for masonry concrete to anticipate fluctuating product demand, obtain information regarding the number of sales that need to be provided in the following year from two forecasting methods, determine the accuracy of forecasting results from both methods, including ARIMA and SARIMA.
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