Total spent = $1 (rice) + $2 (burger) = $3.
Money left = $8 - $3 = $5.

• Percentage left = \(\frac{\text{Money left}}{\text{Original money}} \times 100\%\)
• = \(\frac{5}{8} \times 100\%\)
• = \(0.625 \times 100\% = 62.5\%\)

Mel had 62.5% of his money left.

Final Answer: 62.5%