Only need D & E. Thanks!

Canadian Dollar/U.S. Dollar. The Canadian dollar's value against the U.S. dollar has seen some significant changes over recent history. Using the graph of the C\$/US\$ exchange rate for the 35-year period between 1980 and January 2015 to estimate the percentage change in the Canadian dollar's value (affectionately known as the "loonie") versus the dollar for the following periods. a. January 1980-January 1986 b. January 1986-October 1991 c. October 1991-December 2001 d. December 2001-April 2011 e. April 2011-January 2015 a. The percentage change in the value of the loonie for the period of January 1980 to January 1986 is %. (Round to two decimal places. A negative change must be entered with a negative sign.) b. The percentage change in the value of the loonie for the period of January 1986 to October 1991 is %. (Round to two decimal places. A negative change must be entered with a negative sign.) c. The percentage change in the value of the loonie for the period of October 1991 to December 2001 is %. (Round to two decimal places. A negative change must be entered with a negative sign.) d. The percentage change in the value of the loonie for the period of December 2001 to April 2011 is \%. (Round to two decimal places. A negative change must be entered with a negative sign.) Canadian dollars (CAD) =1.00 U.S. dollar (USD) January 1980-January 2015 (monthly average)