| 20 Products | May 2025 | May 2026 | Change |
| Tesco Tuna Chunks In Spring Water (400g) | £1.90 | £2.00 | + £0.10 5.3% increase |
| | £1.90 | £2.00 | + £0.10 5.3% increase |
| Tesco Tuna Chunks In Sunflower Oil (145g) | £0.68 | £0.65 | - £0.03 -4.4% decrease |
| | £0.68 | £0.65 | - £0.03 -4.4% decrease |
| Tesco Tuna Chunks In Spring Water (80g) | £2.20 | £2.20 | £0.00 No change |
| | £2.20 | £2.20 | £0.00 No change |
| Prince's Tuna Chunks In Springwater (145g) | £1.75 | £1.80 | + £0.05 2.9% increase |
| | £1.75 | £1.80 | + £0.05 2.9% increase |
| Princes Drained Tuna Chunk In Brine (110g) | £1.75 | £1.75 | £0.00 No change |
| | £1.75 | £1.75 | £0.00 No change |
| Princes Tuna Chunks In Brine (400g) | £2.90 | £2.90 | £0.00 No change |
| | £2.90 | £2.90 | £0.00 No change |
| Tesco Tuna Chunks In Spring Water (145g) | £0.70 | £0.65 | - £0.05 -7.1% decrease |
| | £0.70 | £0.65 | - £0.05 -7.1% decrease |
| Tesco Tuna Chunks In Sunflower Oil (400g) | £1.90 | £2.00 | + £0.10 5.3% increase |
| | £1.90 | £2.00 | + £0.10 5.3% increase |
| Princes Tuna Chunks in Spring Water (145g) | £4.25 | £4.25 | £0.00 No change |
| | £4.25 | £4.25 | £0.00 No change |
| Princes Tuna Chunks In Sunflower Oil (400g) | £2.90 | £2.90 | £0.00 No change |
| | £2.90 | £2.90 | £0.00 No change |
