Calculate percentages and percentage changes in business contexts.

This business idea, Calculate percentages and percentage changes in business contexts sits within Calculation requirements and Quantitative skills in business for AQA GCSE Business 8132. Use a business such as SwiftServe serves business clients while changing promotion; the case evidence includes supplier lead time of ?3,310, sales of 810 units, and a 25% change in costs or demand to keep the explanation applied. The important reasoning is to connect percentage change, percentages with the business objective, the financial implication, and the effect on customers. Avoid treating margin and markup as the same thing. A high-quality answer should explain the commercial trade-off, use precise evidence, and finish with a judgement that depends on the context rather than a generic definition.