Can we just confirm are you using the payroll in QuickBooks Online and if so which payroll are you using? Could you attach a screen shot showing both pages to your reply or send it as a private message on the Community if you prefer so we can see what may be causing this
I appreciate the screenshot that you've given, @Beths14.
The figures that will show up on your profit and loss should match with the wage amounts on the payroll transactions. Having a duplicate posting of payroll transactions may cause an increase in your P&L.
To get this sorted out, let's verify the transactions that are generated on your paycheck list report with the profit and loss to see it's correct. All you have to do is to pull up both reports (paycheck list and P&L) and compare it afterward. If you've found any duplicate transactions, you'll need to review the amounts to determine where does it coming from.
If the amounts are from the downloaded bank transactions, make sure you don't use the Add option because it will create duplicate entries. Instead, Match the amount to the existing payroll records inside QuickBooks.
If the data are all the same, you can try accessing your account through a private window. At times, the stored data on your cache can cause some odd issues and simply needs to be cleared from the browser.
I'm still here to help should you have further questions. Just leave a reply below and we'll take it from there. Have a lovely day!