| 10 Products | Jul 2024 | Jul 2025 | Change |
| Stamford Street Co. Onions () | £0.80 | £0.80 | £0.00 No change |
| | £0.80 | £0.80 | £0.00 No change |
| Waitrose Ltd Essential Onions per kg () | £0.55 | £0.75 | + £0.20 36.4% increase |
| | £0.55 | £0.75 | + £0.20 36.4% increase |
| | £0.65 | £0.99 | + £0.34 52.3% increase |
| | £0.65 | £0.99 | + £0.34 52.3% increase |
| SO Organic Sainsbury's Onions () | £1.30 | £1.60 | + £0.30 23.1% increase |
| | £1.30 | £1.60 | + £0.30 23.1% increase |
| Sainsbury's Diced Onions Inspired to Cook (200g) | £0.50 | £0.50 | £0.00 No change |
| | £0.50 | £0.50 | £0.00 No change |
| Sainsbury's Onions Loose () | £0.65 | £0.99 | + £0.34 52.3% increase |
| | £0.65 | £0.99 | + £0.34 52.3% increase |
| Sainsbury's Red Onions (1kg) | £1.10 | £0.95 | - £0.15 -13.6% decrease |
| | £1.10 | £0.95 | - £0.15 -13.6% decrease |
| Stamford Street Co. Red Onions () | £0.70 | £0.70 | £0.00 No change |
| | £0.70 | £0.70 | £0.00 No change |
| SO Organic Sainsbury's Red Onions (500g) | £1.40 | £1.40 | £0.00 No change |
| | £1.40 | £1.40 | £0.00 No change |
| Sainsbury's Brown Onions () | £1.00 | £0.95 | - £0.05 -5% decrease |
| | £1.00 | £0.95 | - £0.05 -5% decrease |
