April 2026 · 13,500+ records
The biggest
bottle is not
always cheaper.
On the same Slovenian shelf, Persil 2.25 L costs €12.00/L while Persil 3.96 L costs €6.06/L. Bigger packaging does not guarantee the lowest unit price.
Slovenia · Persil
2×
per-litre gap within one brand
13,500+ price records · 8 markets · Jun 2025 → Apr 2026
Persil on one Slovenian shelf
Unit price by bottle size (€ per litre)
Biggest pack
is not the best deal.
Slovenia Persil
Slovenia Ariel
Lithuania Ariel
Croatia Persil
Finland Omo
Cross-market sweep
8 markets · 13,500+ records
Across comparable pack-size curves, pricing is uneven. Finland’s Omo is a rare case where the larger pack is genuinely cheaper.
Annual cost
€60
wasted in a year
A Slovenian household that repeatedly chooses Persil 2.25 L instead of the 3.96 L sibling can waste about €60 over a year of typical weekly washing.
Why?
Pack-size pricing is used deliberately as a merchandising tool rather than a simple volume discount.
Retailers know many shoppers assume a bigger bottle must be cheaper per litre.
The family pack can be positioned as a premium tier while better value sits in a mid-size bottle.
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