Canadian Dollar U.S. Dollar. The Canadian dollar's value against the US dolar has seen some significant changes over recent history. Using the graph of the CSMUS exchange rate for the 35-year period between 1990 and January 2015 to estimate the percentage change in the Canadian dollar's value (atfectionately known as the loonie") Such versus the doliar 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 a. The percentage change in the value of the loonie for the period of January 1980 to January 1986 - 1773' (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 1918 % (Round to two decimal placet. A negative change must be entered with a negative sign Canadian Dollar U.S. Dollar. The Canadian dollar's value against the US dolar has seen some significant changes over recent history. Using the graph of the CSMUS exchange rate for the 35-year period between 1990 and January 2015 to estimate the percentage change in the Canadian dollar's value (atfectionately known as the loonie") Such versus the doliar 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 a. The percentage change in the value of the loonie for the period of January 1980 to January 1986 - 1773' (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 1918 % (Round to two decimal placet. A negative change must be entered with a negative sign