Hi @saitejabandaru ,
To implement this you have to update the code for card-product.liquid to show impact globally.
Please refer the below code to implement the same.
{%- assign difference = card_product.compare_at_price | minus: card_product.price -%}
{%- assign float_difference = difference | times: 1.0 -%}
{%- assign discount_fraction = float_difference | divided_by: card_product.compare_at_price -%}
{%- assign discount_percentage = discount_fraction | times: 100 | round -%}
{{- discount_percentage }}
For line number where to update the code and implement it on product page kindly refer the below video.
Hope this will helps..