I suspect it may be even higher.
I have ordered from diff suppliers and seen stuff floating around gyms for years.
I have tested and tried diff stuff and would suspect some of it was fake ( I know it was fake )
and some was from very trusted sources.
Sometimes the sources buy counterfits and dont even know it. I just went through this with some fake stuff floating around my gym ,guy thought he had ordered sustanons showed me the box and packing insert , it looked real untill you looked at the manufacture date and exp date with batch number it was printed into the box all the same batch number with same exp date and product code in black ink as if it were printed on the box when the box was made , when the exp should have been a diff stamp, he swore up and down it was real. He sold alot of it to local gym guys I mean literally 100's of amps ( with out the boxes and ofcoarse after i pointed it out to him)
The fact is these labs in russia throughout europe down to asia are setting up shop making fake rolex watches, fake gucci handbags, fake nike shoes. So fake steroids are just part of what happens , with all the fake steroids floating around the fakes end up in someones hands and get used by someone at the end of the trail.
If a trusted source gets sold 100,000 fake dbol tabs .You think he can eat that cost ? no he sends them out and hopes no one notices and tries to not make the same mistake.if someone does notice he will prob offer money back to a selected few ,Fact is this is a drug trade guys
wether you want to admit it or not .
Just as some soild sources with great ethics and customer service exist , as many scam artist will be in the mix