Returns and Prices Consider the following sequence of prices: P={25,31.25,28.125,32.5,38.75}. You can think of this as a time series realization with the time index going from 0 to 4 . Consider investing $1 in this stock at time 0 . How would that grow over time? Call this new time series A and find the values for time 1 to 4 : A={A0=1,A1,A2,A3,A4}. Round to two decimal places