First find the money left, then express as a percentage of the total.<br><br>• Total = $60, Spent = $18<br>• Left = 60 − 18 = \(\$42\)<br>• Fraction left = \(\frac{42}{60}\)<br>• Simplify: \(\frac{42 \div 6}{60 \div 6} = \frac{7}{10}\)<br>• \(\frac{7}{10} \times 100\% = 70\%\)<br><br>Final Answer: 70