ATM Surcharges 99.2% of ATMs levy a surcharge on users who are not account holders....

ATM Surcharges 99.2% of ATMs levy a surcharge on users who are not account holders. The amount of the surcharge for non-account holders can be modeled as

a. Calculate the average rate of change in the amount of the surcharge for non-account holders between 1998 and 2008. Write the result in a sentence of interpretation.

b. Calculate the change and the percentage change in the amount of the surcharge for non-account holders between 1998 and 2008.