Error made in form 8938 Part V line 23 noticed after filing - How to correct

I have made an error in my 8938 Part V line 23 - and wrongly reported the amount as $24,320 instead of $2652 (error made in the conversion from Foreign Currency to USD). The return has been e-filed and accepted (by Fed and State).

 

I know that there will be no change in the Fed or State taxes - but I want to know how to correct this ? Also I have not yet filed the FBAR.

 

Any guidance would be appreciated. Thank you