the possibility of underestimation and overestimation is very high due to high service level,
peak, and sparse sales in food retail industry. Therefore, a hybrid SARIMA and Quantile Regression
(SARIMA-QR) is developed to construct high and low quantile predictions. Instead of extrapolating the
quantiles from the mean point forecasts of SARIMA-MLR model based on the assumption of normality,
the SARIMA-QR model directly forecasts the quantiles. The developed SARIMA-MLR and SARIMA-QR
models are applied in modeling and forecasting of sales data, i.e., the daily sales of banana from a discount
retail store in Lower Bavaria, Germany. The results show that the SARIMA-MLR and -QR models
yield better forecasts at out-sample data when compared to seasonal naïve forecasting, traditional
SARIMA, and multi-layered perceptron neural network (MLPNN) models. Unlike the SARIMA-MLR model,
the SARIMA-QR model provides better prediction intervals and a deep insight into the effects of demand
influencing factors for different quantiles.