To display Tax amount in Sales invoice print format

I wanted to display tax amount in sales invoice print format.

I am displaying it in table format

{%- for row in doc.items-%} {{ row.gst_hsn_code}} {{ row.get_formatted("amount", doc) }} 14% { row.get_formatted("amount", doc) }} 14%
    </tr>{%- endfor -%}

In the above code, i wanted to display in

14% of total amount
Please anyone help me to do this

Can anyone please help me to find a solution for this. Its too urgent.

I created an example here which should help