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#21
I think that's how that indicator works--multiply by 50 if it says 98 left.
But I don't know how useful that is----it's an estimate at best.
The drive could drop dead in 10 seconds and they are also well known to last well beyond the TBW---which as far as I can tell is mostly there so the manufacturer can refuse your warranty claim if the TBW is exceeded. Once it's out of warranty (5 years?), it's every man for himself--just like with any refrigerator, car, or pocket knife.
Personally--I'd just make sure I had ordinary backups and keep on doing what you are doing. It's not like the things cost $500 bucks or emit phosgene gas---as far as I can determine.