javascript
const calculateButton = document.getElementById('calculate');
const oddsInput = document.getElementById('odds');
const resultText = document.getElementById('result');

calculateButton.addEventListener('click', function() {
  const odds = parseInt(oddsInput.value, 10);
  const successRate = (odds / 10) * 100;
  const result = `Your odds of invaluable success are ${successRate}%`;
  resultText.textContent = result;
});