Over Contributed Too Much to Solo 401k $1,800, need remove but account value $1,500 currently

Ok so I'm an idiot and estimated my employer profit share solo 401k contribution wrong and when I did my taxes it worked out that I can only contribute $100 to it, but I contributed $1,900 a few months ago.

 

Current account value is $1,500

 

I need to remove $1,800 and just have the $100 as contributed like my taxes say.

 

My broker has the removal of excess form but I just don't know what to do in this situation I created for myself.

 

I'm in a pickle and I don't like pickles :(