1.html

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Steam-KSMarket Calculator</title>
    <style>
        body {
            font-family: Arial, sans-serif;
            margin: 20px;
            background-color: #333;
            color: #fff;
        }
        label {
            display: block;
            margin-bottom: 5px;
        }
        input {
            width: 100%;
            padding: 8px;
            margin-bottom: 10px;
            box-sizing: border-box;
        }
        button {
            padding: 10px;
            background-color: #4CAF50;
            color: white;
            border: none;
            border-radius: 4px;
            cursor: pointer;
        }
        button:hover {
            background-color: #45a049;
        }
        #result {
            margin-top: 20px;
            font-weight: bold;
        }
    </style>
</head>
<body>
    <h1>Steam-KSMarket Calculator</h1>
    <label for="steamPrice">Item cost in Steam:</label>
    <input type="number" id="steamPrice" placeholder="Enter Steam price" required>
    
    <label for="salePrice">Item sale price on Steam:</label>
    <input type="number" id="salePrice" placeholder="Enter sale price on Steam" required>

    <button onclick="calculate()">Calculate</button>

    <div id="result"></div>

    <script>
        function calculate() {
            const steamPrice = parseFloat(document.getElementById('steamPrice').value);
            const salePrice = parseFloat(document.getElementById('salePrice').value);

            const incomeAfterSteamFee = salePrice - (salePrice * 0.15);
            const incomeAfterKSMarketFee = incomeAfterSteamFee - (incomeAfterSteamFee * 0.05);
            const totalResult = incomeAfterKSMarketFee - steamPrice;

            const resultElement = document.getElementById('result');
            resultElement.textContent = `Result: ${incomeAfterKSMarketFee.toFixed(4)} (Profit/Loss: ${totalResult.toFixed(4)})`;
        }
    </script>
</body>
</html>