676                                                    20

     .   , 
    ,   1,056   .  , 
 ,    $125 000   ,
       s  :

1,25.? + 1,056 = $125 000 .                         (20.18)

      ,  s , 
   ,   0,8.?,    , -
  ,   1,056.  ,   ,
  $95 238   ,     
  s  :

0,8s + 1,056 = $95 238 .                          (20.19)

       ,     s  .
 . 20.11(6)  .    ,     
  $66 139     $40 312   (.. s = $66 138
  = $40 312).     $106 450 ($66 138 + $40 312).

     $100 000  -
        (  -
)  $6450.       
    .      -
    ,   .

 ,       
     ,       -
 .      ,  -
          
  .

  ,    ,    $82 672
($66,138  1,25),   - $42 328 ($40 312  1,05).    
 $125 000.      ,     
     ,    $42 328,
            
  .

   ,     $52 910 ($66 138  0,8),  -
 - $42 328 ($40 312  1,05).    $95 238.   
  $52 910 ,       
   .

 ,     ,  
         .
 ,     ,   
       .    -
       62,13% ($66 138/$10 450), 
     100% (   ),   0% (
  ).

         -
         
    .       -
       ,   
   .     :

          -
 .

          -
 .