USING COMMON SIZE INCOME STATEMENT DATA The 2009, 2008, and 2007 income statements for Electronics Unlimited appear below.

Electronics Unlimited Income Statement Year Ended December 31, 2009 2008 2007 Revenues Theme parks and resorts $2,723.8 $3,299.9 $3,502.7 Filmed entertainment 2,601.4 3,127.3 3,682.4 Consumer products 752.3 1,121.6 1,493.5

$6,077.5 $7,548.8 $8,678.6 Costs and expenses Theme parks and resorts $2,263.9 $2,723.4 $2,703.7 Filmed entertainment 2,300.2 2,566.3 3,104.9 Consumer products 503.7 804.5 1,120.6

$5,067.8 $6,094.2 $6,929.2 Year Ended December 31, 2009 2008 2007 Operating income Theme parks and resorts $ 459.9 $ 576.5 $ 799.0 Filmed entertainment 301.2 561.0 577.5 Consumer products 248.6 317.1 372.9 $1,009.7 $1,454.6 $1,749.4 Corporate activities General and administrative expenses $ 161.2 $ 150.2 $ 165.3 Interest expense 103.7 130.8 158.9 Investment and interest income (121.1) (127.4) (193.6)
$ 143.8 $ 153.6 $ 130.6 Income (loss) on investment in Asian theme park $ 62.1 $ 13.6 $ (520.8)
Income before income taxes $ 928.0 $1,314.6 $1,098.0 Income taxes 376.2 492.3 410.4 Net income $ 551.8 $ 822.3 $ 687.6 Required:
. Calculate how much each of the revenues and expenses changed from 2007 through 2009.
. Discuss the primary causes of Electronics Unlimited’s increase in net income in 2008 and the decrease in 2009.