In 1997 there were 300 female employees at Company C. If the number of female employees at Company C increased by 60 percent from 1977 to 1987, by what percent did the number of female employees at Company C increase from 1987 to 1997?

(1) From 1977 to 1997 the number of female employees increased by 200 percent at Company C.

(2) In 1977 there were 100 female employees at Company C.

Source: GMAT Prep Question Pack 1

Rated: Medium

I understand statement 2, but can someone illustrate algebraically how statement 1 would work?

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