| p4change | p4change[n] OPERATOR (INDICATOR or NUMBER) , where n is a positive integer >= 0. | Returns the percentage change from the closing price of day n-3 to the closing price of day n where n=0 is the last trading day, n=1 is the previous day, etc. | (p4change[0] > -1) and (p4change[0] < 1) |