Ive attached necessary information to answer the two questions inside excel please.

Step 1: Use the price series for the company to calculate monthly returns. Note that 61 months of price data will generate 60 months of returns. Similarly, use the ECU series to calculate the monthly percentage changes in the dollar value of the ECU. Show the two series of changes in two separate columns next to the original prices and exchange rates. \begin{tabular}{lllll} \hline 26 & 23 & 38.800 & 1.2100 \\ \hline 27 & 24 & 38.425 & 1.2075 \\ \hline 28 & 25 & 38.925 & 1.2123 \\ \hline 29 & 26 & 39.050 & 1.2265 \\ \hline 30 & 27 & 40.800 & 1.2344 \\ \hline 31 & 28 & 40.550 & 1.2277 \\ \hline 32 & 29 & 40.800 & 1.2255 \\ \hline 33 & 30 & 40.550 & 1.2381 \\ \hline 34 & 31 & 40.550 & 1.2349 \\ \hline 35 & 32 & 40.425 & 1.2363 \\ \hline 36 & 33 & 38.550 & 1.2363 \\ \hline 37 & 34 & 39.300 & 1.2321 \\ \hline 38 & 35 & 38.550 & 1.2349 \\ \hline 39 & 36 & 38.675 & 1.2313 \\ \hline 40 & 37 & 37.800 & 1.2303 \\ \hline 41 & 38 & 37.800 & 1.2332 \\ \hline 42 & 39 & 37.925 & 1.2341 \\ \hline 43 & 40 & 37.800 & 1.2345 \\ \hline 44 & 41 & 38.300 & 1.2295 \\ \hline 45 & 42 & 38.050 & 1.2382 \\ \hline 46 & 43 & 38.675 & 1.2323 \\ \hline 47 & 44 & 38.425 & 1.2357 \\ \hline 48 & 45 & 38.425 & 1.2326 \\ \hline 49 & 46 & 38.925 & 1.2313 \\ \hline 50 & 47 & 38.925 & 1.2367 \end{tabular} \begin{tabular}{llll|l|l} & A & B & C & D & E \\ \hline 49 & 46 & 38.925 & 1.2313 \\ 50 & 47 & 38.925 & 1.2367 & \\ 51 & 48 & 38.675 & 1.2379 & \\ 52 & 49 & 38.300 & 1.2394 \\ 53 & 50 & 37.550 & 1.2994 & \\ 54 & 51 & 37.800 & 1.2994 & \\ 55 & 52 & 40.050 & 1.2352 \\ \hline 56 & 53 & 39.800 & 1.2387 \\ 57 & 54 & 39.800 & 1.2447 \\ \hline 58 & 55 & 39.425 & 1.2538 \\ \hline 59 & 56 & 39.425 & 1.2701 \\ \hline 60 & 57 & 39.300 & 1.2684 \\ \hline 61 & 58 & 40.050 & 1.2689 \\ \hline 62 & 59 & 39.550 & 1.2738 & \\ \hline 63 & 60 & 39.675 & 1.2694 & \\ \hline 64 & 61 & 39.640 & 1.2743 \end{tabular}