Imagine a question and stream-of-consciousness explanation for which this is the answer: 2500

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
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Question: Jonathan eats 2500 calories every day except for Saturday, when he consumes an extra 1000 calories. He burns 3000 calories every day. What is his weekly caloric deficit?
Stream-of-consciousness: He consumes 2500 + 1000 = 3500 calories on Saturday. He consumes 2500 * 6 + 3500 = 18500 calories in the week. He burns 3000 * 7 = 21000 calories in the week. His caloric deficit is 21000 - 18500 = 2500 calories per week.