从mysql数据库的两列之和计算pecent值

我正在尝试从两列中获取总值(我已经完成了这项工作),然后获取这些值并从中创建百分比。在这种情况下,我有一个加权值和一个总值。我需要知道我的加权值占总价值的百分比。

我试过:

    $result = mysqli_query($mysqli, "SELECT SUM(WEIGHTEDV / VALUE) FROM test.service");

    $result = mysqli_query($mysqli, "SELECT WEIGHTEDV, VALUE, (WEIGHTEDV / VALUE) AS percent FROM test.service;

    $result = mysqli_query($mysqli,"SELECT (WEIGHTEDV / VALUE)*10 AS Percent
FROM test.service");

还有一些我不太记得的尝试。

下面是更完整的代码:

登录和工作值总和

    <?php
                    //LOGIN INFO
                    $db_host = 'localhost';
                    $db_user = 'root';
                    $db_pw = "********";
                    $database = "test";
                    //LOGIN VARIABLE
                    $mysqli = new mysqli($db_host, $db_user, $db_pw);
                    //VERIFY LOGIN INTEGRITY
                    if ($mysqli === false) {
                        die("Cannot connect to Database Server" . $mysqli->connect_error);
                    }
                    if (!mysqli_select_db($mysqli, $database)) {
                        die("Cannot select test Database" . $mysqli->connect_error);
                    }
                    $result = mysqli_query($mysqli, "SELECT SUM(VALUE) FROM test.service");
                    //PRINT ROWS
                    $fields_num = mysqli_num_fields($result);
                    while($row = mysqli_fetch_row($result)) {
                        foreach($row as $cell) {
                            echo "$$cell";
                        }
                    }
                    ?>

加权工作和

                        <?php
                    $result = mysqli_query($mysqli, "SELECT SUM(WEIGHTEDV) FROM test.service");
                    //PRINT ROWS
                    $fields_num = mysqli_num_fields($result);
                    while($row = mysqli_fetch_row($result)) {
                        foreach($row as $cell) {
                            echo "$$cell";
                        }
                    }
                    ?>

在我的表中当前总数的预期输出是

Expected Output: %54.8

测试变量:

VALUE: 38940.00
WEIGHTEDV:21345.00

两者都有一种类型(我将类型更改为int——相同的结果):

DECIMAL(12,2)

实际输出示例(直接从html表中输出):

65.000000100.0000000.00000050.00000025.000000100.00000050.000000

具有以上输出的当前代码:

    $result = mysqli_query($mysqli,"SELECT (WEIGHTEDV / VALUE)*100 AS Percent
FROM test.service");

这让我很困惑。我确信这是我忽略的一件简单的事情。如能提供任何帮助,我将不胜感激,为什么我不能得到一个简单的%价值产出。