The following table provides the prices of a good over three consecutive years. 
a.Compute the simple price index for 2010 using 2009 as the base year.
b.If the base year is changed to 2010,compute the simple price index for 2011.
Definitions:
Employee Benefits
Non-wage compensation provided to employees in addition to their normal wages or salaries, such as health insurance, pensions, and paid vacations.
Wage Rate
The amount of money paid to an employee per unit of time, usually expressed per hour or per year.
Wage Disparity
The difference in wages earned by different groups of people, often highlighted by gaps across genders, ethnicities, or education levels.
Ability And Talent
The skills and natural aptitudes individuals possess, which can affect their performance in various activities or professions.
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