In analyzing$$ sales, it is often more relevant to know the$\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_$ than the$\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_.$

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Part $1$

A$.$

percentage$$ change; dollar change

B$.$

percentage$$ change; change in unit sales

C$.$

dollar$$ change; change in unit sales

D$.$

change in unit$$ sales; dollar change