Sequential Compression Sleeves, Knee Length

Patient CareEssential, 95% service targetPrimary vendor Meridian Medical Supply, lead 1.5 days, ordered every 7 daysMMS-047670

Stock position

On hand
287 pair13.9 days of supply
On order
0 pairnothing open
Forecast rate
20.7 pair/daynext 30 days
Demand over 9 days
197 pairlead time plus review period
Safety stock
43 pairempirical 95th percentile of forecast error
Reorder point
240 pairabove
Stockout
Tue Sep 29
Recommended order
noneby Wed Sep 23
Inventory value
$4,018at $14.00 per pair

How the forecast was made

Exponential smoothing21% weekly error, over-forecast46% better than naive

A weighted recent average that learns the weekday pattern and any trend. Recent days count more than old ones.

Report card: the model was fit on history up to Tue Jul 21 and scored on the 56 days after. Weekly totals were off by 21% on average (33% day by day), and it over-forecast by 6% overall. A same-weekday-last-week guess would have been off by 39%.

Report card, week by week

Week ofUsedForecastErrorError %
Tue Jul 21168146-2213%
Tue Jul 28103146+4342%
Tue Aug 4101146+4545%
Tue Aug 11175146-2917%
Tue Aug 18177146-3118%
Tue Aug 25117146+2925%
Tue Sep 1126146+2016%
Tue Sep 8135146+118%
All 8 weeks1,1021,171+696%

Weekly totals in pair. Error is forecast minus what was used, so a positive number means the model ran high. This window was hidden from the model when it was fit.

Demand forecast

last 180 days and the next 30
03367todayreport card windowThu Mar 19Wed Oct 14
actual forecast, 80% and 95% range what the model said during the report card windowpair/day

The model only knows the usage history. If you know something it does not, a coming surge, a new service line, a product being dropped, adjust the forecast and the stock math follows.

Projected on hand

0safety stock 43runs out Tue Sep 29tomorrowSun Oct 4
Projected on hand, pair: today's stock plus open orders on their expected dates, minus the forecast, day by day.

Vendors and prices, last 90 days

VendorPart numberVendor descriptionSells byPaid per pairInvoices90-day spendPairing
Meridian Medical SupplyMMS-047670SEQ COMP SLV KNEE LNTH CS/10CS of 10$13.1214$25,320AI 0.87