What's your experience with Negotiating Prices in Ecuador?

What is your experience like? I'm interested in hearing your experience with the acceptable negotiation range, where you won't insult the seller by offering an "insane lowball" (like countering an initial offer with an 80% discount).

To understand an acceptable negotiating range, one would have to know the value or at least a ballpark figure of whatever it is one is interested in buying. This will require research if one is clueless. Last week I ordered a custom made desk, a rather huge one, by going direct to San Roque, because that is where the wholesalers and furniture makers are located. I used the prices of ready made desks that were being sold at the mercado as a base number. So based on that, I started to negotiate with one of the sellers, and got what I believe to be a good deal, which was much cheaper than what furniture stores were selling similar desks that were smaller.

At my local mercado when buying things I simply tell them give me 50 cents/1 dollar of whatever, for instance mote. So I don't even waste time bargaining. My current apartment I negotiated over two days with back and forth communication, but initially I walked away and gave them my number, and they called the next day. This was an apartment that had a sign on the window, and got 10% off the initial price and very favorable terms stipulated in the contract.

As for taxis, it's always by the meter, but if it's late I'll add a dollar or two on top of the usual fare. If it's a short trip with heavy traffic I'll tip a $1 for a $2 fare, or if I have a lot of stuff in the trunk and the driver makes an effort to help bring the stuff to the front gate, I tip a $1 or $2.

But in general there really isn't a formula, but my guiding principle is fairness. For instance let's take a tailor if he is making something, the considerations are the level of expertise, the quality of the fabric, the time it will take, and more often than not one gets what they paid for.