After reading a newspaper article titled (Comcast Outbids Fox and Walt Disney Co. with $40 billion Offer for Europe's Sky TV)

Collect monthly share prices for Sky Plc and Comcast Ltd for one year from July 2017 to June 2018 (12 observations for each company). Calculate share prices' monthly return for each company using this formula: Return=(P1 - P0) / P0 , and then draw a line graph depicting the movements of the RETURNS of both companies on one graph. Use different colors for lines of different returns.