Calculate the percentage change of the variable in each of the following cases. Then calculate the percentage change if the movement is occurring in the opposite direction, with what was the final value now the initial value and vice versa. Now calculate a comparable percentage change using the average of the initial and ending values. Express at three changes in abrolute value form wathout positve or negative signs and as whole numbers (le. 67%, not 66.6%. a. A fast-food restaurant, which originally sold hamburgers at a price of $7, increases their price to $8. The absolute value of this percentage change is %, the absolute value of the percentage change in the onvosite dircction is %, and the absolute value of the percentage change calculated using the average of the two values is b. The number of autos sold monthly at a car dealership drops from 500 to 450 . The absolute value of this percentage change is %, the absolute value of the percentage change in the opposite direction is % and the absolute value of the percentage change calculated using the average of the two values is c. The monthly fee for unlimited texting charged by a cellphone service provider falls from $11 to $6. The absolute value of this percentage change is %, the absolute value of the percentage change in the opposite direction is % and the absolute value of the percentage change calculated using the average of the two values is a. A fast-food restaurant, which originally sold hamburgers at a price of $7, increases their price to $8. The absolute value of this percentage change is %, the absolute value of the percentage change in the opposite direction is %, and the absolute value of the percentage change calculated using the average of the two values is b. The number of autos sold monthly at a car dealership drops from 500 to 450 . The absolute value of this percentage change is %, the absolute value of the percentage change in the opoosate direction is % and the absolute value of the percentage change calculated using the average of the two values is c. The monthly fee for unlimited texting charged by a cellphone service provider falls from \$11 to $6. The absolute value of this percentage change is \% the absolute value of the percentage change in the opiosite airection. %, and the absolute value of the percentage change calculated using the average of the two values is d. The number of coples of a small-town newspaper purchased weekly rises from 3,000 to 5,000 The absolute value of this percentage change is o the absolute value of the percentage change in the obossite dicection is %, and the absolute value of the percentage change calculated using the average of the two vatues is