I would like to calculate total order amount in the previous month.

I got the query for getting the data for the present month from the current date.

SELECT SUM(goods_total) AS Total_Amount  FROM orders
WHERE order_placed_date >= date_sub(current_date, INTERVAL 1 MONTH);

Now how can I get Previous Months Data only, excluding this month.

For e.g. This month (July) I made $15,000 and last Month(June) i made $14,000.

I get the $15,000 by running the above query.

But i dont know how to calculate Previous Months.

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