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A soft drink company prepares drinks of three different flavours  X, Y and Z. The production of three flavours over a period of six years has been expressed in the bar graph provided below.
Production of Three Different Flavours X, Y and Z by a Company over the years (in lakh bottles)
Required percentage 




= 133.33%. 
Average annual productions over the given period for various flavours are:
For Flavour X =  1  x (50 + 40 + 55 + 45 + 60 + 50)  = 50 lakh bottles.  
6 
For Flavour Y =  1  x (55 + 60 + 50 + 55 + 50 + 55)  = 54.17 lakh bottles.  
6 
For Flavour Z =  1  x (45 + 50 + 60 + 60 + 45 + 40)  = 50 lakh bottles.  
6 
Maximum average production is for Flavour Y.
Average production of flavour X in 1995, 1996 and 1997
=  1  x (50 + 40 + 55)  
3 
=  145  lakh bottles.  
3 
Average production of flavour Y in 1998, 1999 and 2000
=  1  x (55 + 50 + 55)  
3 
=  160  lakh bottles.  
3 
Difference 




= 5 lakh bottles  
= 5,00,000 bottles. 
Percentage decline in the production of flavour Z in 2000 as compared to the production in 1998
=  (60  40)  x 100  %  
60 
=  20  x 100  %  
60 
= 33.33%
33%.
The percentage rise/fall in production from the previous year for flavour Y during various years are:
In 1996 =  (60  55)  x 100  % = 9.09% (increase)  
55 
In 1997 =  (60  50)  x 100  % = 16.67% (decrease)  
60 
In 1998 =  (55  50)  x 100  % = 10% (increase)  
55 
In 1999 =  (55  50)  x 100  % = 9.09% (decrease)  
55 
In 2000 =  (55  50)  x 100  % = 10% (increase)  
50 
Maximum change is decrease of 16.67% during 1997.