Direction: Study the following line graph carefully and answer the questions given below: Assuming that there is no fixed component and all the units produced are sold in the same year.

1.  

If the SP per unit decreased by 25% during 2007 to 2010 and the CP per unit increased by 25% during 2011 to 2014 then the cumulative profit for the entire period 2007 to 2014 decreased by: