698                                                     21

      ,     $650 (0,65 
 $1000).         ,    
 ,  ,       ,  -
  ;       $500.

       S  ,    -
   $500,      $500  $1000, . .  
 .  S   ,    -
   S,      .   S
  ,       $500,    
.  S   $1000,      $500.

,          -
    $3,95  .        $750
   SB  $750 (. . 21.1).      
  ,       $750,   
   $1000. , S   $750,    
     

21.3.5    

,     ,    $4,15   
.       $0,20  ,    
   $3,95.   ,       -
,           $4,15 -
- . (,       ,
   ^  .)       ,
       ( ) -
  . ( ,       -
   .)

    ,        .
    5000      , -
        . ?    
     :   ,    .
     ,      
      . ,  -
      $2000,  : (1) -
  $1000; (2)       $250;

(3)    $750 (5000  ($4,15  $4). . 21.1  -
          S.

     : (1)  -
   ; (2)   ,    
 .       -
    ,   ,  
  ,       5.

        -
     .      
    $4,    4-   $4,15    
 $0,15  .  S        $4,
      $4,25,   S   
 ,  : 5'    $4,     $4,25
   $0,25  .