Underlying2017
£000
2016
£000
Finance expense arising from:
— Financial liabilities at amortised cost5,0162,372
— Net interest on net defined benefit obligations4017
— Foreign exchange losses811
Underlying finance expense5,0563,200
Non-underlying2017
£000
2016
£000
Loss on extinguishment of debt (note 21)844
Fair value and other movements on deferred and contingent consideration242922
Non-underlying finance expense2421,766
Total finance expense5,2984,966