Three step process. The first is the analytical process... they give you an excel spreadsheet for you to analyse in a short period of time. It is basically procurement and cost saving opportunities. If you are familiar with pivot tables thats all you need! The second interview is behavioural and case study. For the case you need to be organised and structured in the way you think. Sometimes they do a brainstorming session.. be prepared for that! The third interview is another case study and teasing questions with a director and a partner. get used to doing calculations on strange things like how many black cats in australia