The figure below shows the prices of a barrel of oil on the world market. Prices are in pounds.
Read the prices and write them in the spreadsheet. Calculate the average oil price from Jan. 12 to Jan.19.
Calculate the maximum price increase between consecutive days. Write it down as a percentage.
Calculate savings on purchase of 20,000 barrels of oil if purchase is made Jan. 12 instead of Jan. 14.
