I couldn't say an exact percentage, but I'd guess that the amount of stuff sold by Amazon that's made in China is about the same as any other big box retailer. After all, they are selling mostly the same stuff you can get at Walmart, Best Buy, Target, etc. I'd also agree that just because it's made in China doesn't mean it's junk, and just because it's made in the USA doesn't mean it's of good quality. I've seen plenty of quality stuff that was made in China, and plenty of [censored] that was made in the USA.