| Software
£m | Non-
compete
agreements
£m | Customer
relationships
£m | Total
£m |
| Cost | | | | |
| At 1 January 2017 | 35.1 | 3.1 | 49.1 | 87.3 |
| Exchange differences | (0.1) | – | (3.4) | (3.5) |
| Additions | 5.2 | – | – | 5.2 |
| Disposals | (0.3) | – | – | (0.3) |
| At 1 January 2018 | 39.9 | 3.1 | 45.7 | 88.7 |
| Exchange differences | 0.4 | – | 1.8 | 2.2 |
| Additions | 1.8 | – | – | 1.8 |
| Acquired on acquisition of businesses (see note 24) | – | – | 3.0 | 3.0 |
| Disposals | (0.6) | – | – | (0.6) |
| Derecognised on disposal of businesses | (1.0) | – | – | (1.0) |
| At 31 December 2018* | 40.5 | 3.1 | 50.5 | 94.1 |
| Amortisation | | | | |
| At 1 January 2017 | 15.3 | 3.0 | 23.2 | 41.5 |
| Exchange differences | (0.1) | – | (2.0) | (2.1) |
| Charge for the year | 1.7 | 0.1 | 4.4 | 6.2 |
| Disposals | (0.3) | – | – | (0.3) |
| At 1 January 2018 | 16.6 | 3.1 | 25.6 | 45.3 |
| Exchange differences | 0.3 | – | 1.3 | 1.6 |
| Charge for the year | 1.9 | – | 3.7 | 5.6 |
| Disposals | (0.6) | – | – | (0.6) |
| Derecognised on disposal of businesses | (0.8) | – | – | (0.8) |
| At 31 December 2018 | 17.4 | 3.1 | 30.6 | 51.1 |
| Carrying amount | | | | |
| At 31 December 2018 | 23.1 | – | 19.9 | 43.0 |
| At 31 December 2017 | 23.3 | – | 20.1 | 43.4 |
Included in software assets are ongoing development costs related to the Group's ERP solutions. £9.1m (2017: £9.3m) of these costs are related to assets that are not yet available for use and are therefore not yet amortised. As such solutions become available for use they will be amortised according to Group policy.