In my survey, participants have to bid on shares of both ethical and non-ethical companies with 2 different wallets they have been given. A bid price and random price determine whether the share is purchased. This changes the wallet. Using JavaScript, I want to show what their bid has done to their wallet. Unfortunately the codes i am using do not work. Can someone help me please?

these are my codes:

Qualtrics.SurveyEngine.addOnReady(function()
{
    /*Place your JavaScript here to run when the page is fully displayed*/
    
    // Initialize wallet balances
var ownWallet = 10;
var charityWallet = 5;

// Generate a random price between 0 and 10
var randomPrice = (Math.random() * 10).toFixed(2); // Ensure the random price has two decimal places

// Calculate the profit (either 5 or 2.5)
var profit = Math.random() < 0.5 ? 5 : 2.5;

// Get the participant's bid price from your Qualtrics question
var participantBid = Number("${e://Field/Participants bid price}");

// Check if the participant's bid is higher than the random price
if (participantBid >= randomPrice) {
    // Update the own wallet balance
    ownWallet = ownWallet - randomPrice + profit;

    // Determine the amount to be subtracted from the charity wallet (either 2.5 or 0.5)
    var charitySubtraction = Math.random() < 0.5 ? 2.5 : 0.5;

    // Update the charity wallet balance
    charityWallet = charityWallet - charitySubtraction;

    // Inform the participant that they bought the share
    var FL_2 = document.getElementById('share_status_element'); // Replace with the actual element ID
    if (FL_2) {
        shareStatusElement.innerHTML = 'You bought the share at the random price of ' + randomPrice + ' euros.';
    }
} else {
    // Inform the participant that they did not buy the share
    var FL_2 = document.getElementById('share_status_element'); // Replace with the actual element ID
    if (FL_2) {
        shareStatusElement.innerHTML = 'You did not buy the share at the random price of ' + randomPrice + ' euros.';
    }
}

});