Pass calculated fields values to chart.js in html box

I am trying to integrate a donut chart from chart.js using data from my CFF. For example, pass the “Principal + Interest” field into the data set for the pie chart so the chart updates as people change the input values. I believe the html box doesn’t accept shortcodes that pull the values from the calculator. It is working with numerical values but when I try to add the values from CFF it breaks the calculator. Any help would be appreciated!

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