The behaviour of indicator/oscillators can't be generalized. Each indicator tells a different story. Understanding the maths/calculation behind it is absolutely necessary to interpret the story that indicator is telling. Moreover indicator has to be used like a pickle in meal and not as a main course. Because the main course is always the price action and patterns that candles create. So the interpretation of indicator also changes with the price action.
I referred this site goo.gl/HDQdEt
and found that the formula is RSI = 100 –
Can you please explain more or some pointers/links will be highly appreciated. Thanks