Translation

[Duet062010]

"The pharmaceuticals divisions accounted for roughly 20 percent of dollar sales and 40 percent of profits and the chemicals division for the balance."

1. what is the role of "s", those i have underlined?
2. what is the meaning of the underlined part of the sentence?
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[Beeesneees]

1. plural
2. The Pharmaceuticals departments (more than one) accounted for 20% of sales and 40% of profits. The chemicals department accounted for the remainder, so they accounted for 80% of dollar sales and 60% of profits.
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Cheers m' dears!