I see where this does get confusing because we haven't come to an agreement on a specific format to use.
In 3 of my reviews where I did get extras, I followed the exact format that is used when posting on the USA Sex Guide forums. Using this format, every $ = $100 and every decimal amount represents increments of $10, for example $$.5 would = $250
The very first time I used this format, which was on my review of Legends in downtown Detroit, I got questions about how much I paid. I had to post the exact amount in the comments section. After using the code a second time, I still got a question from Juice about how much I paid. I probably should've stopped using the code format right then.
As for overpaying, I now know I probably did on one occasion. I paid $300 for FS at Players. I was willing to pay that much and I did have to negotiate to get to that price.
With that said, for those of us who do seek extras and want to share that information in a review, I think we should establish that we either:
A) just be upfront and post actual prices
or
B) if we do want to use a code, have a specific code format that all users adapt to instead of each of us creating our own.