Create shortcode in WordPress, using one variable in 3 functions?

use function to call variable

   function give_value(){
      $acfvalue = get_field( 'short_title' );
     return $acfvalue;
   }
   function hprice(){
      return '<h2>'. give_value() . " Price list in India" .'</h2>';
   }
   add_shortcode( 'pprice', 'hprice' );

   function hspecs(){
     return '<h2>'.  give_value() . " Full Specification" . '</h2>';
  }
   add_shortcode( 'pspecs', 'hspecs' );
   function hreview(){
     return '<h2>'.  give_value() . " Review" . '</h2>';
   }
   add_shortcode( 'preview', 'hreview' );