Blood Pressure Cuff, Disposable, Adult

Patient CareNon-essential, 90% service targetPrimary vendor Meridian Medical Supply, lead 1.5 days, ordered every 7 daysMMS-206010

Stock position

On hand
224 each10 days of supply
On order
0 eachnothing open
Forecast rate
22.5 each/daynext 30 days
Demand over 9 days
207 eachlead time plus review period
Safety stock
12 eachempirical 90th percentile of forecast error
Reorder point
219 eachabove
Stockout
Thu Sep 24
Recommended order
noneby Tue Sep 22
Inventory value
$1,075at $4.80 per each

How the forecast was made

Exponential smoothing8% weekly error, over-forecast67% 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 8% on average (27% day by day), and it over-forecast by 6% overall. A same-weekday-last-week guess would have been off by 25%.

Report card, week by week

Week ofUsedForecastErrorError %
Tue Jul 21137163+2619%
Tue Jul 28167163-42%
Tue Aug 4161163+21%
Tue Aug 11126163+3729%
Tue Aug 18172163-95%
Tue Aug 25153163+107%
Tue Sep 1157163+64%
Tue Sep 8154163+96%
All 8 weeks1,2271,302+756%

Weekly totals in each. 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
02652todayreport card windowThu Mar 19Wed Oct 14
actual forecast, 80% and 95% range what the model said during the report card windoweach/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 12runs out Thu Sep 24tomorrowTue Sep 29
Projected on hand, each: 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 eachInvoices90-day spendPairing
Meridian Medical SupplyMMS-206010BLD PRESS CUFF DISP ADLT BX/20BX of 20$4.3313$6,500AI 0.88
Northwind Health DistributionNW7282704Blood Pressure Cuff, Disposable, Adult - 20/BxBX of 20$4.5013$2,879AI 0.88