Hi
You theme the following code in the files below
{if $product.has_discount}
                  {hook h='displayProductPriceBlock' product=$product type="old_price"}
                  <span class="regular-price">{$product.regular_price}</span>
                  {if $product.discount_type === 'percentage'}
                    <span class="discount-percentage discount-product">{$product.discount_percentage}</span>
                  {elseif $product.discount_type === 'amount'}
                    <span class="discount-amount discount-product">{$product.discount_amount_to_display}</span>
                  {/if}
                {/if}

1. \themes\modern-fashion1\modules\ps_shoppingcart\modal.tpl
https://prnt.sc/26jwuay
2. \themes\modern-fashion1\modules\ps_shoppingcart\
ps_shoppingcart-content.tpl
https://prnt.sc/26jwvku
Then add the style to the file field_style.css

.cart-item-product-right .regular-price, #blockcart-modal .divide-left .regular-price{
    color: #000;
    text-decoration: line-through;
    font-size: 20px;
    font-weight: 500;
    margin-left: 20px;
    vertical-align: bottom;
}
.cart-item-product-right .discount-amount , #blockcart-modal .divide-left .discount-amount{
    display: none !important;
}
#blockcart-modal .divide-left .price{
    margin: 0;
    display: inline-block;
}
Thanks

Hi
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Have a good day
Thanks