The difference you're getting isn't so much with your timeframe, it's how you are calculating percent increase. The correct calculation is (TY - LY)/LY. I believe you are just calculating it as TY/LY.
FORT LAUDERDALE, Fla.--(BUSINESS WIRE)--Aug. 11, 2005--GlobeTel Communications Corp. (AMEX:GTE - News), today reported in its filing of SEC Form 10Q that the company had revenues of $19,700,531 during the second quarter ended June 30, 2005, compared to $3,790,085 during the same period in 2004, an increase of 419%. Total revenues for the six months ended were $37,711,175, compared to $7,000,419 during the same period in 2004, an increase of 438%. The total losses for the second quarter were $3,115,294, excluding non-recurring one-time charges of $2,842,035. The company also provided the following quarterly comparison: http://www.investorshub.com/boards/read_msg.asp?message_id=7326911