After a 10% discount, the sale price is 90% of the original price.<br><br>&bull; 90% → \(\$306\)<br>&bull; 1% → \(306 \div 90 = \$3.40\)<br>&bull; 100% → \(3.40 \times 100 = \$340\)<br><br>Check: 340 × 0.9 = 306. ✓<br><br>Final Answer: 340