The following table presents the mid-rates, the Royal Bank’s buy and sell rates, and ICE’s buy and sell rates (at their Vancouver International Airport operation) on the same date for conversions between the Canadian dollar and three other major currencies.

a. As a percentage of the mid-rate, calculate to the nearest 0.01% the percent spread (between buy and sell rates) on US dollar conversions for each of the Royal Bank and ICE.
b. As a percentage of the midrate, calculate the percent buy-sell spread on British pound conversions for each of the Royal Bank and ICE.
c. As a percentage of the mid-rate, calculate the percent buy-sell spread on euro conversions for each of the Royal Bank and ICE.