Add text before sale price only in Woocomemrce

gistfile1.txt

function bd_sale_price_html( $price, $product ) {
 
  if ( $product->is_on_sale() ) :
 
    $return_string = str_replace( '<ins>, '<ins><br>Sale Price: ', $price);
    return $return_string;
 
  else :
    return $price;
  endif;
 
}
add_filter( 'woocommerce_get_price_html', 'bd_sale_price_html', 100, 2 );