Impact Factor (2025): 6.9
DOI Prefix: 10.47001/IRJIET
PT. XYZ is
one of the private companies engaged in the cosmetics industry, especially as a
manufacturer of SPA products with natural raw materials. The SPA products
produced by PT. XYZ are various kinds of scrubs, body scrubs, masks, essential
oils, soaps and other products. Body scrub is the most popular product or best
seller in this company. The purpose of this study is to find the best ARIMA
model in calculating demand forecasting of body scrub products at PT. XYZ for
the period January to December 2024. The method used in this research is the
Autoregressive Moving Average (ARIMA) method. There are two ARIMA models that
can be used in this study, namely ARIMA (1,1,0) and ARIMA (0,1,1). The selected
ARIMA model used to calculate body scrub forecasting at PT. XYZ is the ARIMA
(1,1,0) model because it has a smaller error value, namely MSE = 745.46 and
MAPE = 7.40%. The results of forecasting the demand for body scrub products at
PT. XYZ for the period January to December 2024 using the ARIMA (1,1,0) model show
that demand has increased every month with an average demand of 343.4 kg. The
error obtained by comparing the forecasting results with the actual sales data
for 6 months, namely January - June 2024 is 2.45%, which means that the
accuracy of forecasting in 6 months reaches 97.55%.
Country : Indonesia
IRJIET, Volume 8, Issue 8, August 2024 pp. 17-25