| 6 Products | May 2023 | May 2024 | Change |
| Hartley's Best Strawberry Seedless Jam (340g) | £1.68 | £1.66 | - £0.02 -1.2% decrease |
| | £2.10 | £1.70 | - £0.40 -19% decrease |
| | £1.80 | £1.80 | £0.00 -10.3% increase |
| | £1.40 | £1.70 | + £0.30 -2.3% increase |
| | £1.60 | £1.60 | £0.00 -1.7% increase |
| | £1.49 | £1.49 | £0.00 -1.2% increase |
| Hartley's Smooth Strawberry Jam (340g) | £1.85 | £2.08 | + £0.23 12.4% increase |
| | £1.60 | £2.25 | + £0.65 40.6% increase |
| | £1.95 | £2.00 | + £0.05 19.7% increase |
| | £2.00 | £2.00 | £0.00 12.4% increase |
| Hartley's Best Strawberry Jam (340g) | £1.70 | £1.67 | - £0.03 -1.8% decrease |
| | £2.10 | £1.70 | - £0.40 -19% decrease |
| | £1.40 | £1.70 | + £0.30 -2.9% increase |
| | £1.60 | £1.60 | £0.00 -1.8% increase |
| Hartley's Best of Strawberry Jam (300g) | £1.31 | £1.50 | + £0.19 14.5% increase |
| | £1.30 | £1.50 | + £0.20 15.4% increase |
| | £1.38 | £1.50 | + £0.12 11.9% increase |
| | £1.25 | £1.50 | + £0.25 14.5% increase |
| Hartley's Best of Strawberry Seedless Jam (300g) | £1.31 | £1.50 | + £0.19 14.5% increase |
| | £1.30 | £1.50 | + £0.20 15.4% increase |
| | £1.25 | £1.50 | + £0.25 17.2% increase |
| | £1.38 | £1.50 | + £0.12 14.5% increase |
| Hartley's Strawberry Jam (20g) | £8.00 | £8.00 | £0.00 No change |
| | £8.00 | £8.00 | £0.00 No change |
