<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Maximum Allowable Offer Calculator</title>
    <style>
        body { font-family: Arial, sans-serif; text-align: center; padding: 20px; }
        .container { max-width: 400px; margin: auto; }
        input { width: 100%; padding: 10px; margin: 5px 0; }
        button { padding: 10px; background: #007BFF; color: white; border: none; cursor: pointer; }
        button:hover { background: #0056b3; }
        #result { font-size: 20px; margin-top: 10px; }
    </style>
</head>
<body>
    <div class="container">
        <h2>Maximum Allowable Offer Calculator</h2>
        <label>After Repair Value (ARV) ($):</label>
        <input type="number" id="arv" placeholder="Enter ARV">
        
        <label>Repair Costs ($):</label>
        <input type="number" id="repairs" placeholder="Enter repair costs">
        
        <label>Investment Percentage (%):</label>
        <input type="number" id="investmentPercentage" value="70" placeholder="Enter investment percentage">
        
        <button onclick="calculateMAO()">Calculate MAO</button>
        
        <div id="result"></div>
    </div>

    <script>
        function calculateMAO() {
            let arv = parseFloat(document.getElementById('arv').value);
            let repairs = parseFloat(document.getElementById('repairs').value);
            let investmentPercentage = parseFloat(document.getElementById('investmentPercentage').value) / 100;
            
            if (isNaN(arv) || isNaN(repairs) || isNaN(investmentPercentage)) {
                document.getElementById('result').innerHTML = "Please enter valid numbers.";
                return;
            }
            
            let mao = (arv * investmentPercentage) - repairs;
            document.getElementById('result').innerHTML = "Maximum Allowable Offer: $" + mao.toFixed(2);
        }
    </script>
</body>
</html>

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