| 6 Products | Apr 2024 | Apr 2025 | Change |
| Grumpy Mule Organic Sumatra Coffee Beans () (200g) | £6.12 | £7.51 | + £1.39 22.7% increase |
| | £4.49 | £4.49 | £0.00 No change |
| | £5.50 | £5.50 | £0.00 No change |
| | £4.50 | £10.07 | + £5.57 38.5% increase |
| | £9.98 | £9.98 | £0.00 22.7% increase |
| Grumpy Mule Organic Espresso Beans (227g) | £7.52 | £6.96 | - £0.56 -7.4% decrease |
| | £5.50 | £5.50 | £0.00 No change |
| | £6.80 | £5.11 | - £1.69 -13.7% decrease |
| | £10.26 | £10.26 | £0.00 -7.4% increase |
| Grumpy Mule Colombia Organic Coffee Beans (500g) | £11.00 | £13.00 | + £2.00 18.2% increase |
| | £11.00 | £13.00 | + £2.00 18.2% increase |
| Grumpy Mule Organic Sumatra Coffee Beans (500g) | £11.00 | £13.00 | + £2.00 18.2% increase |
| | £11.00 | £13.00 | + £2.00 18.2% increase |
| Grumpy Mule Organic Shakisso Ground Coffee (227g) | £5.50 | £5.50 | £0.00 No change |
| | £5.50 | £5.50 | £0.00 No change |
| Grumpy Mule Peru Organic Coffee Beans (500g) | £11.00 | £13.00 | + £2.00 18.2% increase |
| | £11.00 | £13.00 | + £2.00 18.2% increase |
