Determining nitrogen in compost

I tried to google this and all I found was commercial testing. Is there any way for a backyard hobbyist to determine say withing 75% accuracy the nitrogen content of compost?

I suspect you’re using the wrong keywords - try “soil nitrogen test kit” and you’ll find lots of test kits designed for home use.

Thanks Bob, yep I was just using the wrong search words. All kinds of test kits available.