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Both sides previous revision Previous revision Next revision | Previous revision | ||
reports:purchasing [2024/07/26 04:36] – [mSupply's better algorithm] Louisa Wong | reports:purchasing [2024/08/12 01:41] (current) – [Report output] Louisa Wong | ||
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Step 5: | Step 5: | ||
We can now calculate the Adjusted AMC with the formula: | We can now calculate the Adjusted AMC with the formula: | ||
- | Square root[(Days in stock)/(Days in the month)] * Consumption | + | Square root[(Days in month)/(Days in the stock)] * Consumption |
We check this individually for each month that has not been excluded. | We check this individually for each month that has not been excluded. | ||
So, if the "Days in month" = "Days in Stock", | So, if the "Days in month" = "Days in Stock", | ||
Line 167: | Line 167: | ||
For the Adjusted AMC = 267.87/8.8 months = 30.34 units per month. | For the Adjusted AMC = 267.87/8.8 months = 30.34 units per month. | ||
- | Note: If all months have been excluded due to the first or second exclusion criteria, then the typical AMC calculation will automatically be used instead. | + | **Steps Summarised:** |
- | Steps Summarised: | + | Step 1: Adjusting by % Days in Stock |
- | 1. Step 1: Adjusting by % Days in Stock | + | * Set threshold for fully stocked (e.g., 90%) |
- | * Set threshold for fully stocked (e.g., 90%) | + | * Exclude months with < 90% stock |
- | * Exclude months with < 90% stock | + | |
- | 2. | + | Step 2: Calculate Typical AMC |
- | * Use months not excluded in Step 1 | + | * Use months not excluded in Step 1 |
- | * Calculate Typical AMC = (Total consumption of only months included in Step 1)/(Number months usage basis) | + | * Calculate Typical AMC = (Total consumption of only months included in Step 1)/(Number months usage basis) |
- | 3. Step 3: Automatic Exclusion for Low Stock | + | Step 3: Automatic Exclusion for Low Stock |
- | * Exclude months with < 33% days in stock | + | * Exclude months with < 33% days in stock |
Step 4: Compromised Stock Level Check | Step 4: Compromised Stock Level Check | ||
- | * Set threshold (e.g., 100% of typical AMC) | + | |
- | * Exclude months below threshold | + | * Exclude months below threshold |
Step 5: Calculate Adjusted AMC | Step 5: Calculate Adjusted AMC | ||
- | * Apply formula to each included month = Square root[(Days in stock)/(Days in the month)] * Consumption | + | |
- | * Sum the results | + | * Sum the results |
Step 6: Final Adjusted AMC Calculation | Step 6: Final Adjusted AMC Calculation | ||
- | * Divide total consumption by number of months | + | |
- | * Calculate Adjusted AMC | + | * Calculate Adjusted AMC |
+ | |||
+ | Note: If all months have been excluded due to the first or second exclusion criteria, then the typical AMC calculation will automatically be used instead. | ||
==== Report options ==== | ==== Report options ==== | ||
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* Number of months in stock : Calculated by (' | * Number of months in stock : Calculated by (' | ||
- | * Ordered Quantity used : Calculated | + | * Ordered Quantity used : This is how much of the stock you have ordered that you will actually need to use, based on how much you use each day and how much stock you already have (Note: forecast calculation will affect this). This is determined |
+ | * Calculate the "usage per day of stock" = AMC / 30.4375 | ||
+ | * Multiply "usage per day of stock" with the "total number of days in your months stock required" | ||
+ | * Calculate your " | ||
+ | * Subtract "Total usage required" | ||
+ | * This value ("Net stock difference to be used") now determines the " | ||
+ | * If the value is a negative value and there is "Stock on order", add the "Net stock difference to be used" with "Stock on order" = "Net stock difference to be used" + "Stock on order" | ||
+ | * If the value is a positive value and there is "Stock on order", | ||
+ | |||
+ | * Suggested Order calculated by: | ||
+ | * If expected delivery date has not been adjusted: (' | ||
+ | * If expected delivery date has been adjusted, this will be accounted for as it will only look at the stock required from date of expected delivery to the end of months stock required: | ||
+ | |||
+ | * Usage per day = Adjusted AMC/30.4375 (which | ||
+ | * Suggested order quantity | ||
- | * Suggested Order : Calculated by (' | + | * This determines the quantity of stock that needs to be ordered to maintain the desired inventory levels after considering current stock, back orders, and stock already on order. Note: if you are using the " |
{{: | {{: | ||
{{: | {{: |