Find the derivative of the given function. Simplify and express the answer using positive exponents only. 
Definitions:
Euro
The official currency of 19 of the 27 European Union countries, which together make up the Eurozone.
Buying Power
The capacity of an individual or company to purchase goods and services, often related to the amount of money available.
CPI
A metric known as the Consumer Price Index evaluates the overall weighted pricing of a range of consumer items and services, covering areas such as healthcare, food, and transportation.
Raise
An increase in salary or wages.
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