I was always taught that 100% was all of anything. If you buy something for $.50 and sell it for $1.00 you didn't make 100% profit, you made 50%. The only way to make 100% profit is to get the item for nothing then sell it for whatever; any amount is 100% profit.
Here's the discussion I had with my wife in round numbers for ease of reference; she works in Insurance. She has a client paying, let's say, $100 for monthly coverage, then the premium goes up to $300. She says that's a 200% increase in premium, and I understand her reasoning, but what happened to 100% being all of anything.
So is my premise wrong that 100% is all of anything, is it just a mathematical absolute for theoretical calculations, or is percentage merely something based on the number 100?
I suspect it's just based on the number 100, but I'm an old guy. Old habits die hard
Here's the discussion I had with my wife in round numbers for ease of reference; she works in Insurance. She has a client paying, let's say, $100 for monthly coverage, then the premium goes up to $300. She says that's a 200% increase in premium, and I understand her reasoning, but what happened to 100% being all of anything.
So is my premise wrong that 100% is all of anything, is it just a mathematical absolute for theoretical calculations, or is percentage merely something based on the number 100?
I suspect it's just based on the number 100, but I'm an old guy. Old habits die hard

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