Dashboards and alarms Calculating revenue trend

240. Calculating revenue trend

This exercise is based on theLive dataset.

Write a query that returns both “Revenue last 30 days” and its trend (the percentage difference between the previous 30 days). Submit the trend value as the answer.

⚠ Round the answer to the closest integer. For example, if the trend is -78.66% submit -79 as the answer.

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-- Type in your query here. You might want to start by listing all records: SELECT * FROM purchases
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