I am facing a this issue from long time can any one please help me out to solve this..
I am having a target tickets and resolved tickets. I need to show the Percentage of those tickets in bar chart
For Example If current month is
June then April target tickets+ May target tickets+june target tickets/total resolved tickets which includes 3 moths resolved tickets
if it is July then-April target tickets+ May target tickets+june target tickets+july target tickets/total resolved tickets which includes 4 moths resolved tickets.