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<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8" />
  <title>How GradeCalculator.college Works</title>
  <style>
    body { font-family: Arial, sans-serif; padding: 2rem; background: #f9f9f9; color: #333; }
    pre { background: #eee; padding: 1rem; overflow-x: auto; border-radius: 5px; }
    a { color: #0077cc; text-decoration: none; }
    a:hover { text-decoration: underline; }
  </style>
</head>
<body>
  <h1>How GradeCalculator.college Works</h1>
  <p>This site helps students calculate their final grades based on scores and weights.</p>
  <h2>Simple Grade Calculator Demo</h2>
  <pre>
&lt;input id="score" type="number" placeholder="Score" /&gt;
&lt;input id="weight" type="number" placeholder="Weight (%)" /&gt;
&lt;button onclick="calculateGrade()"&gt;Calculate&lt;/button&gt;
&lt;div id="result"&gt;&lt;/div&gt;

&lt;script&gt;
function calculateGrade() {
  const score = parseFloat(document.getElementById('score').value);
  const weight = parseFloat(document.getElementById('weight').value);
  if(isNaN(score) || isNaN(weight)) {
    alert('Please enter valid numbers');
    return;
  }
  const weighted = (score * weight) / 100;
  document.getElementById('result').textContent = 'Weighted Score: ' + weighted.toFixed(2);
}
&lt;/script&gt;
  </pre>
  <p>Try the full calculator at <a href="https://gradecalculator.college" target="_blank" rel="noopener noreferrer">gradecalculator.college</a></p>
</body>
</html>