Policy Making in Optimizing Inventory Control with Continous and Periodic Review Method at PT. XYZ

Reka Nur Aini Reka,Enny Aryanny

doi:10.21070/prozima.v5i2.1452

Abstract

PT. XYZ is a company enganged in the garment sector that produces office uniforms, polo t-shirts and t-shirts with the highest demand for polo t-shirt products from lacos 20S Black cloth. Based on company data and the results of interviews with informants, it found that companies often eperience stockout and overstock of supplies of lacos 20S black cloth due to fluctuating demand. This study to control inventory by comparing the company method with the method of Continuous Review (s,S) System, (S,Q) System and Periodic Review (R,s,S) System, (R,S) System to obtain minimum total cost of inventory. Based on the calculation using the company method, the total cost of inventory is Rp 643.487.400 and the minimum total cost of inventory using the Continuous Review (s,Q) System method is Rp 635.880.585 with savings of Rp 7.606.815 and the percentage of cost reduction is 1,18%. The forecasting needs for April 2021 to March 2022 using the Continuous Review (s,Q) System method, the order quantity is 378 Kg and the reorder point is 133 Kg with a total inventory cost is Rp 767.415.089.

Highlights

XYZ is a company enganged in the garment sector that produces office uniforms, polo t-shirts and tshirts with the highest demand for polo t-shirt products from Lacoste 20S Black cloth
Based on company data and the results of interviews with informants, it found that companies often eperience stockout and overstock of supplies of Lacoste 20S black cloth due to fluctuating demand
Based on the calculation using the company method, the total cost of inventory is Rp 643.487.400 and the minimum total cost of inventory is carried out using the Continuous Review (s,Q) System method is Rp 635.880.585 so that experiences savings of Rp 7.606.815 with the percentage of cost reduction is 1,18%

Summary

HASIL DAN PEMBAHASAN

Total biaya persediaan menggunakan metode perusahaan adalah sebagai berikut:. Maka perhitungan rata-rata dan standar deviasi:. Yaitu 0,0955ndan nilai yaitun0,0187, didapatkaninilai adalahi: Total Biaya Persediaan =. Dengan nilai sebesar 0,072 maka akan dicoba dengan penambahan nilai sebesar periode yaitu 0,0358, sehingga nilai = 0,1074. Dengan nilai sebesar 0,072 maka akan dicoba dengan pengurangan nilai sebesar periode yaitu 0,0179, sehingga nilai = 0,0537. Iterasi 2 Dengan nilai sebesar 0,072 maka akan dicoba dengan penambahan nilai sebesar periode yaitu 0,0358, sehingga nilai = 0,1074. Iterasi tidak dilanjutkan karena total biaya persediaan yang dihasilkan pada iterasi ke empat lebih besar dibandingkan dengan hasil iterasi ke tiga. PERBANDINGAN TOTAL BIAYA PERSEDIAAN METODE CONTINUOUS REVIEW (s,S) SYSTEM, (s,Q) SYSTEM.

Total Biaya Persediaan

Metode Perusahaan