In 2007, Donald's stock portfolio decreased in value by 25%. In 2008, his stock portfolio decreased in value by another 40%. What percentage gain is required in 2009 for Donald's stock portfolio to return to the value it had in the beginning of 2007? (Round to nearest tenth of a percent.)

Answer 1

.6(.75) = .225
1/.225 = 444.4%

Answer 2

All i know is the answer is 122.2%, i don't know what kind of problem this is or how to solve it haha