Hello, @Mavi Ekran,
In order to solve your issue please copy and paste the below-given Code for your theme >> functions.php file:
add_filter( 'woocommerce_sale_flash', 'misha_change_on_sale_badge', 99, 3 ); function misha_change_on_sale_badge( $badge_html, $post, $product ) { return '<span class="onsale">%50 Sale</span>'; }
Note:you can change the text %50 Sale in the code as per your needs.
Regards 8Themes Team.
