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AQA A level Business - Need help on exam question

Hi, so theres a 9 marker saying "Analyse how the changes in these data over time might have affected the ability of BBB plc to provide higher-quality products than its competitors" in a Business past paper. Basically BBB's labour turnover has fallen over time whereas for its competitors it has risen.

My question is about it - Do you write about one of the positive changes and negative changes or are you meant to write about both the positive and the negative changes.

So basically could I get all 9 Mark's just saying the benefits (for example: e.g. an experienced workforce is a lot more likely to maintain consistent levels of quality because everyone understands their role and it also saves the business money as they wont need to train as much employees as frequently) or would I need to say the negatives aswell for all 9 marks. Thanks.