I'll guide you how @Tins.
You can use the Profit and Loss Detail Report and filter it to see the currency. Here's how.
Here are some images of how it looks like:
I'm also attaching these links below in case you want to export your report to Excel or customized it.
Customise reports in QuickBooks Online.
Please leave a comment anytime below if you still have questions or concerns with reports. I'm always here for you. Take care and stay safe.