how to show database values in Pie chart

Question

how to show staff attendances in piechart please help me any one

 

My table structure is

 

staffid      dated            present

1            08/05-2017      f    

2            09/05-2017      m

3            10/05-2017      e  

 

f=full day

m=morning time only

e=evening time only 

 

i want to display this values from database in piechart using asp.net how will do it

 

please suggest me...........