linux unix regex : Trying to extract  the digit bewtween  the parenthesis (AA) and modify (expl: times 300 )  and  update  the old value (AA) using the new value which is  (AA*300) in the whole text.


Exmp text: 
  RRRR  TTTTYYY (22);

  UUUUUUU IIIIII4 (55);

