Abstract:
The research was aimed to investigate purchasing order, pharmaceuticals and medical
supplies of Pharma Drugstore. This study will be guidelines for effective purchasing approaches,
conserve and economic order quantity.
This research collected product movement data from POS computer program of Pharma
Drugstore backward 3 months, March May 2013. These data will be analyzed to demand and sale
forecast and difference of modified average which lead to other data analyzing on June 2013 May
2014. After prioritize product follow ABC analysis or Paretos Law from 1,533 products list, the result
shown that, there are 1,000 circulating products, 299 products (29.99% of all products) categorized in
group A and representing 80% of sales. 292 products categorized in group B (29.2% of all products)
and 409 products are in group C, 5% of 1,000 circulating products or 40.9% of all product.
In this research analyze only group A products by Modified Moving Average which finding
Sum of Absolute Deviation, Mean Absolute Deviation, Economic Order Quantity and Re-order
Point. This result will be approach for effective and appropriate purchasing.
This research result can improve no pattern purchasing of Phama Drugstore to be more
effective purchasing. Pharma Drugstore can categorize special care products; group A, which products
are in group A, how many times to purchase and limited purchasing quantity. This research result can
be further improved to forecast in economic order quantity. Moreover this result can be approach to
accurate forecast, such as seasonal method which is the most accurate result, to decrease lack of stock
or over stock, wasting time in warehouse and cost to warehouse management which resulting in more
profit to organization.