Tonny buys boiled eggs at Tk. 20 a dozen. And sells them at Tk. 2 per piece. What is her profit margin?

Tonny buys boiled eggs at Tk. 20 a dozen. And sells them at Tk. 2 per piece. What is her profit margin?

• 10% (Incorrect)
• 12% (Incorrect)
• 20% (Correct)
• 25% (Incorrect)
• Noun (Incorrect)