Foley Catheter Insertion Kit, 16 Fr, Silicone

Urology & DrainageEssential, 95% service targetPrimary vendor Meridian Medical Supply, lead 1.5 days, ordered every 7 daysMMS-954229

Stock position

On hand
249 each13.8 days of supply
On order
0 eachnothing open
Forecast rate
18.0 each/daynext 30 days
Demand over 9 days
165 eachlead time plus review period
Safety stock
54 eachempirical 95th percentile of forecast error
Reorder point
219 eachabove
Stockout
Mon Sep 28
Recommended order
noneby Wed Sep 23
Inventory value
$2,390at $9.60 per each

How the forecast was made

Exponential smoothing10% weekly error, under-forecast62% 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 10% on average (33% day by day), and it under-forecast by 6% overall. A same-weekday-last-week guess would have been off by 27%.

Report card, week by week

Week ofUsedForecastErrorError %
Tue Jul 21144124-2014%
Tue Jul 28159123-3623%
Tue Aug 4128123-54%
Tue Aug 11145123-2215%
Tue Aug 18126123-32%
Tue Aug 25122123+11%
Tue Sep 1102123+2121%
Tue Sep 8121123+22%
All 8 weeks1,047986-616%

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
02346todayreport 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 54runs out Mon Sep 28tomorrowSat Oct 3
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-954229FOLEY CATH INSERT KIT 16 FR SIL CS/10CS of 10$8.6015$12,124AI 0.79
Northwind Health DistributionNW3538222Foley Catheter Insertion Kit, 16 Fr, Silicone - 10/CsCS of 10$8.7014$4,961AI 0.88