A company produces and sells a single product. The fixed costs amount to $50,000 per month, and the variable cost per unit is $25. The product is sold for **$40 per unit**.
**Required:**
1. Calculate the **break-even point** in units and in dollars.
2. Determine the **profit or loss** if the company sells **4,000 units** in a month.
3. If the company wants to earn a **target profit of $30,000**, how many units must it sell?