Journal of Economics and Management Scienties
Volume 8 No. 3, June 2026 (Accepted)

Perbandingan Kinerja Hybrid Empirical Wavelet Transform (EWT) dengan Prophet dan Holt-Winters dalam Persamaan Permintaan Menu Fast Moving untuk Optimasi Stok di Restoran Pagi Sore

Faturrahman, Ari (Unknown)
Sutrisno, Timotius FCW (Unknown)



Article Info

Publish Date
15 May 2026

Abstract

The imbalance in raw material inventory due to fluctuations in demand for fast-moving menu items is a major challenge for restaurants in operational efficiency. This study aims to determine the most accurate forecasting method to predict demand for nine fast-moving menu items at the Pagi Sore Pemuda Restaurant to optimize inventory control. Using monthly sales transaction data from April 2025 to February 2026, the study applies four forecasting methods: Prophet, Holt-Winters, EWT-Prophet, and EWT-Holt-Winters with a time series forecasting design. Accuracy is measured using the Mean Absolute Percentage Error (MAPE) with a training data division (the first nine months) and testing (the last two months). The results show that the EWT-Prophet method provides the best performance with an average MAPE of 14.02%, outperforming the standard Prophet (15.53%), EWT-Holt-Winters (30.75%), and Holt-Winters (90.61%). Eight menu items achieved good to excellent accuracy (MAPE<20%), with Beef Minced Curry being the most accurate (9.25%) and Mashed Sweet Potato being fairly accurate (21.22%). The three-month forecast (March-May 2026) identified a downward trend across all menu items compared to the previous period, ranging from 6.3% to 27.2%. The three main menu items (Ayam Pop, Rendang, Gulai Tunjang) remained dominant, contributing more than 80% of total sales. These findings provide a quantitative basis for management to adjust the volume of raw material purchases per menu, reduce food waste, and improve overall inventory control efficiency.

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Journal Info

Abbrev

JEMS

Publisher

Subject

Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Library & Information Science Social Sciences

Description

Journal of Economics and Management Scienties is a peer-reviewed open access journal covering applied issues in micro and macroeconomics, including (but not limited to): Political Economy Law and Economics Environmental Economics Innovation Economics Health Economics Gender Economics International ...