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Autoregressive Integrated Moving Average (ARIMA) Models For Forecasting Sales Of Jeans Products
Abstract
Purpose: To be able to compete with other companies, it is necessary to estimate and forecast jeans products that will be ordered according to consumer demand every month, so that there is no excess inventory and product shortage. If there is a shortage of goods, the consumer will be disappointed with the seller, and vice versa if the goods are overstocked, the quality will continue to decline to the detriment of the seller and the buyer, resulting in a shortage of materials.
Methodology: To overcome the problem of selling jeans products, the ARIMA method is suitable to overcome the problem of forecasting the stock of jeans sales. ARIMA model is a model that completely ignores the independent variables in making forecasts. ARIMA uses past and present values of the dependent variable to produce accurate short-term forecasting.
Results: The built forecasting has a MAPE accuracy rate of 17.05% so it can be said that predicting has good results according to the criteria. Forecasting results in the following year show that sales tend to increase from the previous year.
Originality: This research was conducted using sales data of jeans products at company XYZ and using the ARIMA method which previous researchers have never done.Keywords
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DOI: https://doi.org/10.31315/telematika.v20i1.7868
DOI (PDF): https://doi.org/10.31315/telematika.v20i1.7868.g5398
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