I need help with calculating real gdp growth rate
my chart is ; ; ; ; ; ; ; ; ; ;2009 ; 2010
quantity of oranges is ;50 ; ; ; ;54
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quantity of comp ; ; ; is 20 ; ; ; ;30
price of oranges ; ; ; ; ; ; 5. ; ; ; 5.25
price of comp ; ; ; ; ; ; ; ; ;40 ; ; 24