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With a formula, you know the variable's value, and you have to calculate the value of the function of it. With an equation, you know the function's value, and you have to calculate the value of the variable.
It is 100*(Calculated Value - True Value)/True Value
% increase = |original value - new value| /original value * 100%
On a practise test question, it says to calculate the value of the mean. I have no idea what it means because its a pretest. Can you please tell me???
i want to calculate the percentage of mean value of particular data.