Then divide the remainder by the number in the original. It's not necessary to say what's obviously implied. Good writers use adjectives and adverbs sparingly. As Strunk's advice suggests, the problem is not one of absolute numbers. It's not many words but unnecessary words that obscure meaning and make prose leaden.
Lively writing has other enemies than wordiness.
Avoid excessive use of the verb to be. Use the passive voice sparingly. In active constructions, the agent or force performing the action of the predicate is also the subject of the sentence. In passive constructions, the object or recipient of the main action is the subject of the sentence. As any linguist will tell you, a language can't decay.