Write this code in your chield theme function.php file

// * BEGIN Hide prices

add_action(‘after_setup_theme’,’activate_filter’) ;
function activate_filter(){
add_filter(‘woocommerce_get_price_html’, ‘show_price_logged’);
}
function show_price_logged($price){
if(is_user_logged_in() ){
return $price;
}
else
{
//
remove_action(‘woocommerce_after_shop_loop_item’, ‘woocommerce_template_loop_add_to_cart’ );
remove_action(‘woocommerce_single_product_summary’, ‘woocommerce_template_single_price’, 10 );
remove_action(‘woocommerce_single_product_summary’, ‘woocommerce_template_single_add_to_cart’, 30 );
return ‘<a href=”/my-account”>Login for Pricing</a>’;
remove_action(‘woocommerce_after_shop_loop_item_title’, ‘woocommerce_template_loop_price’, 10 );
remove_action(‘woocommerce_single_product_summary’, ‘woocommerce_template_single_add_to_cart’, 30 );
remove_action(‘woocommerce_after_shop_loop_item’, ‘woocommerce_template_loop_add_to_cart’ );
//
}
}
// * END Hide prices