| 15 Products | Aug 2025 | Aug 2026 | Change |
| John West Mackerel Fillets in Sweet Chilli (115g) | £1.80 | £1.80 | £0.00 No change |
| | £1.80 | £1.80 | £0.00 No change |
| Grace Mackerel in Tomato Sauce () | £2.25 | £2.25 | £0.00 No change |
| | £2.25 | £2.25 | £0.00 No change |
| Fish 4 Ever Peppered Mackerel fillets in Organic Orange (220g) | £6.95 | £6.95 | £0.00 No change |
| | £6.95 | £6.95 | £0.00 No change |
| John West King Oscar Mackerel Fillets in Olive Oil (115g) | £2.00 | £2.00 | £0.00 No change |
| | £2.00 | £2.00 | £0.00 No change |
| John West Mackerel Fillets in Sunflower Oil () | £1.80 | £2.25 | + £0.45 25% increase |
| | £1.80 | £2.25 | + £0.45 25% increase |
| John West King Oscar Mackerel Fillets in Lemon Oil Drained (115g) | £2.00 | £2.00 | £0.00 No change |
| | £2.00 | £2.00 | £0.00 No change |
| Grace Mackerel in Hot Tomato & Chilli Sauce (425g) | £2.25 | £2.25 | £0.00 No change |
| | £2.25 | £2.25 | £0.00 No change |
| John West Mackerel Fillets in Tomato Sauce () | £1.80 | £2.25 | + £0.45 25% increase |
| | £1.80 | £2.25 | + £0.45 25% increase |
| John West Mackerel Fillets in Olive Oil (80g) | £1.80 | £1.80 | £0.00 No change |
| | £1.80 | £1.80 | £0.00 No change |
| Delicius Grilled Mackerel Fillets in Olive Oil (110g) | £4.90 | £4.90 | £0.00 No change |
| | £4.90 | £4.90 | £0.00 No change |
