How to show % discount on a product using debut theme

can someone help me to edit the code ?? because i tried to add this after line 12 and nothing is working…

here is my code


  {%- if variant.compare_at_price > variant.price -%}
    {{ 'products.general.regular_price' | t }}
    
      
        {{ variant.compare_at_price | money }}
      
    
    {{ 'products.general.sale_price' | t }}
  {%- else -%}
    {{ 'products.general.regular_price' | t }}
    
      
    
    {{ 'products.general.sale_price' | t }}
  {%- endif -%}

 
  
    {{ variant.price | money }}
  

  

    {%- capture unit_price_separator -%}
      / {{ 'general.accessibility.unit_price_separator' | t }} 
    {%- endcapture -%}

    {%- capture unit_price_base_unit -%}
      
        {%- if variant.unit_price_measurement -%}
          {%- if variant.unit_price_measurement.reference_value != 1 -%}
            {{- variant.unit_price_measurement.reference_value -}}
          {%- endif -%}
          {{ variant.unit_price_measurement.reference_unit }}
        {%- endif -%}
      
    {%- endcapture -%}
    
      {{ 'products.general.unit_price' | t }}
      {{ variant.unit_price | money }}{{- unit_price_separator -}}{{- unit_price_base_unit -}}