| 13 Products | May 2023 | May 2024 | Change |
| M&M's Mix Chocolate Pouch Bag (128g) | £1.25 | £1.25 | £0.00 No change |
| | £1.25 | £1.25 | £0.00 No change |
| M&M's Crunchy Peanut & Milk Chocolate Block Sharing Bar (165g) | £1.50 | £1.50 | £0.00 No change |
| | £1.50 | £1.50 | £0.00 No change |
| M&M's Milk Chocolate Block Sharing Bar (165g) | £2.30 | £2.30 | £0.00 No change |
| | £2.30 | £2.30 | £0.00 No change |
| M&M's Brownie Bites Milk Chocolate Pouch Bag Chocolate Bag (102g) | £2.09 | £1.65 | - £0.44 -21.1% decrease |
| | £2.09 | £1.65 | - £0.44 -21.1% decrease |
| M&M's Crunchy Caramel Chocolate Bar (165g) | £2.30 | £2.30 | £0.00 No change |
| | £2.30 | £2.30 | £0.00 No change |
| M&M's Salted Caramel Milk Chocolate Bites Bag (102g) | £1.25 | £1.65 | + £0.40 32% increase |
| | £1.25 | £1.65 | + £0.40 32% increase |
| M&M's Crispy Milk Chocolate Bites Pouch Bag (107g) | £1.50 | £1.65 | + £0.15 10% increase |
| | £1.50 | £1.65 | + £0.15 10% increase |
| M&M's Crunchy Peanut & Milk Chocolate Sharing Bag (220g) | £2.50 | £2.75 | + £0.25 10% increase |
| | £2.50 | £2.75 | + £0.25 10% increase |
| M&M's & Friends Medium Selection Box (139g) | £1.00 | £2.50 | + £1.50 150% increase |
| | £1.00 | £2.50 | + £1.50 150% increase |
| M&M's Hazelnut Pieces & Milk Chocolate Block Sharing Bar (165g) | £1.15 | £1.15 | £0.00 No change |
| | £1.15 | £1.15 | £0.00 No change |
