Could you please help me to understand this sentence: “Whilst both components are currently made in batches of 500, this would need to change to batches of 400.” So for keypads: 26000-4000=22000 22000/500=44/batch 44/batch * 400= 17.600 I have calculated in this way, but I saw that I was wrong. If the number of batches is less (400<500) how could the cost be higher? I would appreciate if could help me realize where is my mistake 🙂