WORKED HOUSEHOLD EXAMPLE · USER-ENTERED VALUES

Record a salt package before and after receipt

Illustrative inputs, not verified product specifications or care recommendations.

The household question

Two new packs arrive while the open pack remains unchanged.

An empty dishwasher with racks pulled outward
Photo: Castorly Stock / Pexels

Measurements and assumptions

Before the change

Full refill packs0
Capacity per pack (ml or g)1500
Open refill remaining300
Amount per refill250
Last refill date2026-11-01
Measurement unit (g or ml)g
Item nameRecord a salt package before and after receipt
Storage locationHousehold supply shelf
Minimum stock0

After the change

Full refill packs2
Capacity per pack (ml or g)1500
Open refill remaining300
Amount per refill250
Last refill date2026-11-01
Measurement unit (g or ml)g
Item nameRecord a salt package before and after receipt
Storage locationHousehold supply shelf
Minimum stock0

Carry out this task

  1. Save the Before values on the linked tool.
  2. Add the received salt packs to the existing record.
  3. Calculate & Save the After values on the same item. Check the ID is retained rather than creating another physical item.

Calculation and observed tool result

Before

Stock = 0 × 1500 + 300 = 300 g; floor(300 ÷ 250) = 1 refills

Recorded quantity: 300 g.

After

Stock = 2 × 1500 + 300 = 3,300 g; floor(3,300 ÷ 250) = 13 refills

Recorded quantity: 3,300 g.

What the result means

The delivery adds 3,000 g without altering the 300 g open remainder.

Limits of this example

Only include packages actually received.

A mistake to avoid

Replacing the open remainder with a full pack duplicates stock.

Open Dishwasher Salt & Rinse Aid Refill Tracker · How to Track Household Consumables