New Account wizard; Interest button to calculate Interest Rate from Total Interest is not hidden

In the New Account wizard, Financial page, the button next to the Interest Rate to calculate Interest Rate from Total Interest is never hidden if it is shown.

To recreate select an Account Type that shows this button, move through to the Financial Page; the button is correctly shown. Next move back through the wizard and select an Account Type that does not show this button, then move forward again - the button is still visible.