Управление закупками

Indicators of the degree of preservation of material assets

• The value of the natural loss during storage,%:

where Q p is the consumption of materials for the reporting period; O oc - balance of materials on a certain date, t; t cp – average stock of storage, months; H is the rate of natural loss, %; T xp - storage period for which the standard of natural wastage is established, months.

Customer Service Quality Indicators

• Readiness for delivery, %:

;

where Nv and Np - respectively, the number of completed and received orders for the supply of goods; Q p and Q p - respectively, the volume of sold and ordered products;

• The level of centralized delivery of goods from warehouses and wholesale depots,%:

where Q cd and Q total are, respectively, the amount of material supplied for a certain period centrally, and the total amount of material supplied from the warehouse, t; N cd and N total - respectively, the number of enterprises serviced by the warehouse centrally, and the total number of serviced enterprises.

The dependence of the cost of storing goods in own and rented warehouses on the annual turnover

F1 _ - semi-fixed costs for the maintenance of their own warehouse;
F2 _ - variable costs for cargo handling in our own warehouse;
F 3 - the total cost of funds for cargo handling in their own warehouse;
F 4 - the cost of cargo handling in a leased warehouse;
G - a point characterizing the value of the annual turnover, for which the costs of using own and rented warehouses are equal to

Application of XYZ analysis

Calculation algorithm
Determination of coefficients of variation for individual items
Grouping objects in ascending order of coefficients of variation
Plotting an XYZ Curve
Division of a set of objects into three groups: group X , group Y , group Z
Analysis of the results
55% of positions are consumed constantly (group X)
32% of positions are consumed in fluctuating but known volumes ( group Y )
13% of items are consumed only occasionally (Group Z)

Application of XYZ analysis

Number of storage units , %
V , %
X: V ϵ [0% ; 10%]
Y: Vϵ [ 10% ; 25%]
Z: Vϵ [ 25%; 100%]

Application of XYZ and ABC analysis

AX
AY
AZ
BX
BY
BZ
CX
CY
cz
Prediction Accuracy
high
low
high
low
Need