quarter costs rose 17 per cent to 4.7 billion euros. Deutsche Bank is moving to cut its worldwide workforce by 6,400 with 5,400 of those jobs to be axed this year. Of these, some 4,600 employees are due to take voluntary redundancy. Agreements with some 1,000 employees were reached during the third quarter. While pre-tax profits at Deutsche's investment banking unit more than doubled to 1.3 billion euros, its consumer banking operation's pre-tax profits dipped 4.9 per cent to 232 million euros on the back of a rise in loan-loss provisions. Investment banking contributed 67 per cent to Deutsche's group pre-tax profit result.