Material and Immaterial amounts

How do you determine if an amount is material? For example in a case where a finance director was dismissed and is now suing the company. "The HR director told you that XYZ Co’s lawyers believe that the finance director’s claim is likely to be successful, but estimate that $150,000 is the maximum amount of compensation which would be paid." Profit before tax $ 6.5 Million Revenue $ 66 Million So at 2.3% of profit before tax and 0.2% of revenue, I think, in my professional judgement, the claim is MATERIAL in relation to profit but ACCA examiner thinks otherwise. (ACCA September 2016 sitting question 10)