Always inserting the last row of data into database (2 variables) - php

Question

The code just keep retrieving the last row to insert into database. (Images below) I chose and remove USDand CA and the profit and loss and current price in the row don't match when inserted into DB.
It appears as 98.570 and 1.17 when it is supposed to be 1.04930 and -0.72.
The problem is it keeps getting the last row of value in the while loop and inserting into DB. How do i fix this so the variable retrieves from the right row?
While loop for echo
while($row = mysql_fetch_assoc($result)){ //Creates a loop to loop through results
echo "<tr><td>" . $row['trade_id'] .
"</td><td>" . $row['selection'] .
"</td><td>" . $row['date'] .
"</td><td>" . $row['type'] .
"</td><td>" . $row['size'] .
"</td><td>" . $row['bidprice'] .
"</td><td>" . $row['offerprice'] .
"</td><td>" . $row['stoploss'] .
"</td><td>" . $row['takeprofit'] .
"</td><td>" . $closedb .
"</td><td>" . $profitandloss .
"</td><td><a href ='delete.php?id=".
$row['trade_id']."'>X</a>
</td></tr>";
}
function callvariable($closedb,$profitandloss)
{
$variable=array('$closedb','$profitandloss');
return $variable;
}
SQL
$var=callvariable($closedb,$profitandloss);
$mysqli-> query("UPDATE `trade_history1` SET `dateclose` = CURRENT_TIMESTAMP,
`close` = '{$closedb}',
`profitandloss` = '{$profitandloss}'
WHERE `trade_id`= ".$trade_id);