Determining order quantity for small traditional wholesale company by considering business environment through a simulation

摘要

The objectives of this research are to develop a tool to control the quantity of an order, to increase purchasingstaff performance from the service level of 70% - 80% nearly to 99% and increase inventory turnover from 2 - 3times per month to more than 5 times per month. The purposive sample was selected using four stores of asmall trading of consumer products in Ampur Muang Chonburi Province with sales of more than 70 million Bahtper year. The study used interviews to examine the decision making processes for order quantity. In additionto using the Microsoft Excel Program to develop a tool for calculating order quantity and a simulation tool. Fromthe study, the service level can be increased from 70% - 80% to 97.28% and the inventory turnover can beincreased from 2 - 3 times per month to 6.27 times per month.