I am looking for the answer with detailed explanation, it should be in quarterly basis, using Excel is allowed.

Exercise: WorldCom Problem During the four quarters of 2001 and the first quarter of 2002 WorldCom incorrectly capitalized access charges to local networks as assets (instead of expensing them). Amounts capitalized are: QI 2001 U 2001 U 2001 Q42001 QI 2002 $780 mill $605 mill $760 mill 920 mill Sigo mill Suppose they amortized these costs over five years with straight line method. What was the overstatement of quarterly income?