| 9 Products | May 2023 | May 2024 | Change |
| Princes Tuna Chunks in Spring Water (145g) | £4.39 | £4.71 | + £0.32 7.3% increase |
| | £5.35 | £5.35 | £0.00 No change |
| | £4.00 | £5.00 | + £1.00 10.7% increase |
| | £4.00 | £4.00 | £0.00 7.4% increase |
| | £5.00 | £5.00 | £0.00 5.4% increase |
| | £4.00 | £4.40 | + £0.40 6.3% increase |
| | £3.99 | £4.49 | + £0.50 7.3% increase |
| Princes Drained Tuna Steak In Spring Water (110g) | £3.78 | £3.70 | - £0.08 -2.1% decrease |
| | £3.35 | £3.35 | £0.00 No change |
| | £5.00 | £4.75 | - £0.25 -3.1% decrease |
| | £3.00 | £3.00 | £0.00 -2.1% increase |
| Princes Tuna Chunks In Springwater (145g) | £1.50 | £1.65 | + £0.15 10% increase |
| | £1.50 | £1.75 | + £0.25 16.7% increase |
| | £1.50 | £1.70 | + £0.20 15.3% increase |
| | £1.50 | £1.50 | £0.00 10% increase |
| Princes Tuna Chunks in Spring Water (145g) | £7.50 | £7.50 | £0.00 No change |
| | £7.50 | £7.50 | £0.00 No change |
| | £7.50 | £7.50 | £0.00 No change |
| Princes Tuna Chunks in Spring Water () | £8.75 | £8.25 | - £0.50 -5.7% decrease |
| | £4.50 | £3.50 | - £1.00 -22.2% decrease |
| | £12.99 | £12.99 | £0.00 -5.7% increase |
| Princes Drained Tuna Steak In Spring Water (60g) | £2.93 | £2.50 | - £0.43 -14.7% decrease |
| | £2.93 | £2.50 | - £0.43 -14.7% decrease |
| Princes Drained Tuna Steak In Spring Water (110g) | £1.93 | £1.80 | - £0.13 -6.7% decrease |
| | £1.93 | £1.80 | - £0.13 -6.7% decrease |
| Princes Tuna Steaks In Spring Water (160g) | £1.50 | £1.50 | £0.00 No change |
| | £1.50 | £1.50 | £0.00 No change |
| Princes Tuna Chunks in Spring Water (3x56g*) (80g) | £2.75 | £2.75 | £0.00 No change |
| | £2.75 | £2.75 | £0.00 No change |
