This indicator will show how fast the rsi of a symbol is changing. you can see this as a differentiation function on rsi . this will show the change in rsi in percentage.
Ex: suppose the rsi of a symbol at present is 60 and the previous value of rsi was 52, as you can see the rsi has increased, which is a sign of the symbol being bullish . this indicator will tell by what percentage the rsi of the symbol has increased or decreased. for the above example, the change in rsi is 15.38% increase.