OKAY, I KNOW IT LOOKS LONG BUT IT REALLY IS NOT. I NEED HELP ON CACULATING THE P

Question

OKAY, I KNOW IT LOOKS LONG BUT IT REALLY IS NOT. I NEED HELP ON CACULATING THE PRICE INDES FROM THE INFORMATION ABOVE. I HAVE DONE THE FIRST PART OF THE CHART BUT NOT THE LAST ROW. PLEASE EXPLAIN THE STEPS TO HOW YOU FIND THE ANSWERS TO RECIEVE THE POINTS.

FOR THE SECOND PART THE OPTIONS ARE IN THE ()

BETWEEN 2010 AND 2011 THE CSPI INCREASED BY (150%, 125%, 25%, 20%)

BETWEEN 2011AND 2012 , THE CSPI INCREASED BY (150%, 125%, 25%, 20%)

******* AGAIN HERE PLEASE EXPLAIN HOW YOU GOT THE ANSWER.

THEN JUST THE ONE MULTIPLE CHOICE AT THE END, THERE CAN BE MORE THAN ONE ANSWER.

******PLEASE ONLY REAL ANSWERS FOR THIS QUESTION, I NEED HELP TO PREPARE FOR A TEST****

**NO GUESSING I WILL REPORT YOU FOR NONSENSE ANSWERS***

Explanation / Answer

Price indexfor 2011 (base yr 2010)
PI(2011)=2375*100/1900=125

Price index for 2012(base year 2010)
PI(2010)= 2850*100/1900= 150

Percentage increaseof price index (2010-2011)= (125-100)*100 /100= 25 percent
Percentage increase of price index (2011-2012)= (150-125)*100/ 125= 20 percent.

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