Direct Answer

The cheapest pack is not always the cheapest solution. Divide the pack price by the number of units to get cost per item. Then estimate how many changes per day you need. A product that costs R15 but needs changing 6 times daily costs R90 per day. A product that costs R25 but lasts 4 changes costs R100 per day — only slightly more for potentially better comfort and sleep.

Calculation Method

Pack price ÷ units per pack = cost per unit
Cost per unit × changes per day = daily cost
Daily cost × 30 = estimated monthly cost

Example Comparison

Product A (Basic): R145 for 10 briefs = R14.50 each. 5 changes/day = R72.50/day = R2,175/month.

Product B (Premium): R255 for 10 premium briefs = R25.50 each. 3 changes/day = R76.50/day = R2,295/month.

Product B costs only R120 more per month but provides better overnight protection, fewer sleep interruptions, and potentially less skin irritation. For some users, that difference is worth it. For others, Product A is perfectly adequate.

Hidden Costs to Consider

Skin care products: Frequent changes with Basic products may require more barrier cream and cleanser
Laundry: Leaks mean more linen changes and washing
Caregiver time: More changes = more labour cost in institutional settings
Sleep disruption: Overnight leaks disrupt sleep for wearer and caregiver
Mattress replacement: Inadequate protection shortens mattress life

Bulk Buying for Institutions

For care homes, hospitals and frail care facilities, calculate monthly requirements:

Number of residents × average changes per day × days per month = total units
Add 10-15% contingency for unexpected needs
Request a formal quotation for volume pricing
Consider mixed inventory: Premium for overnight, Standard for daytime