| 18 Products | Jun 2025 | Jun 2026 | Change |
| Morrisons Mackerel Fillets (380g) | £4.00 | £4.00 | £0.00 No change |
| | £4.00 | £4.00 | £0.00 No change |
| John West Mackerel Fillets in Sweet Chilli (115g) | £1.58 | £1.50 | - £0.08 -5.1% decrease |
| | £1.58 | £1.50 | - £0.08 -5.1% decrease |
| Morrisons Mackerel Fillets In Olive Oil (125g) | £1.00 | £1.30 | + £0.30 30% increase |
| | £1.00 | £1.30 | + £0.30 30% increase |
| Grace Mackerel in Tomato Sauce (425g) | £1.85 | £1.85 | £0.00 No change |
| | £1.85 | £1.85 | £0.00 No change |
| Morrisons Mackerel Fillets in Sunflower Oil (125g) | £0.95 | £1.30 | + £0.35 36.8% increase |
| | £0.95 | £1.30 | + £0.35 36.8% increase |
| John West Mackerel Fillets in Sunflower Oil (115g) | £1.63 | £1.75 | + £0.12 7.4% increase |
| | £1.63 | £1.75 | + £0.12 7.4% increase |
| Graal Mackerel Fillets in Tomato Sauce (170g) | £1.65 | £1.65 | £0.00 No change |
| | £1.65 | £1.65 | £0.00 No change |
| John West Mackerel Fillets in Tomato Sauce (115g) | £1.63 | £1.75 | + £0.12 7.4% increase |
| | £1.63 | £1.75 | + £0.12 7.4% increase |
| John West Mackerel Fillets in Olive Oil (80g) | £1.63 | £1.75 | + £0.12 7.4% increase |
| | £1.63 | £1.75 | + £0.12 7.4% increase |
| Morrisons Mackerel Fillets In Tomato Sauce (125g) | £1.00 | £1.00 | £0.00 No change |
| | £1.00 | £1.00 | £0.00 No change |
