3rd Axis Line Graph Overlay Data Set Problem

I have attached a stacked and clustered bar chart that otherwise looks fine. I wanted to overlay a Percentage data set from the right axis. However, due to the spacing of the four accounting data sets, the percentage line graph has many data points with the value of zero as you can see in the data attachment.

Please help me either remove the 0% data points or a better way to create a stacked cluster bar chart.

Thanks in advance.

Joe