| 15 Products | Dec 2024 | Dec 2025 | 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 (425g) | £1.60 | £1.80 | + £0.20 12.5% increase |
| | £1.60 | £1.80 | + £0.20 12.5% increase |
| 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 (115g) | £1.80 | £1.95 | + £0.15 8.3% increase |
| | £1.80 | £1.95 | + £0.15 8.3% 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) | £1.60 | £1.80 | + £0.20 12.5% increase |
| | £1.60 | £1.80 | + £0.20 12.5% increase |
| John West Mackerel Fillets in Tomato Sauce (115g) | £1.80 | £1.95 | + £0.15 8.3% increase |
| | £1.80 | £1.95 | + £0.15 8.3% increase |
| John West Mackerel Fillets in Olive Oil (115g) | £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 |
