100.{250:[325-(4.53-22.50)]}
=100.{250:[325-(4.125-4.50)]}
=100.{250:[325-(500-200)]}
=100.{250:[325-300]}
=100.{250:25}
=100.10
=1000
100 . { 250 : [ 325 - ( 4 . 53 - 22 . 50 )]}
= 100 . { 250 : [ 325 - ( 4 . 125 - 4 . 50)]}
= 100 . { 250 : [ 325 - ( 500 - 200 )]}
= 100 . { 250 : [ 325 - 300 ]}
= 100 . { 250 : 25 }
= 100 . 10
= 1000