Hi sunny, thanks for the reply.
I need to show two things here:
1. If savings are started for any ID in FY15 and continued in FY16, then FY16 values are carry over to the FY15.
so, in a stacked bar chart, FY15 in one color(blue as shown in excel) and FY16 in orange.
2. All current FY values should be in Blue and all carryover values should be in orange.
You may need to calculate the opening and closing balance for the year to this
Please check this links it might be helpful