Rewrite the following paragraph by varying sentence types and sentence lengths to keep the writing interesting.
Smartfood was founded by Ann Withey, Andrew Martin, and Ken Meyers in 1984. The product was the first snack food to combine white cheddar cheese and popcorn. Ann Withey perfected the Smartfood recipe in her home kitchen after much trial and error. Smartfood sales were reportedly only $35,000 in 1985. During that time, the product was available only in New England. By 1988, sales had soared to $10 million. This attracted the attention of Frito-Lay. The snack-food giant bought Smartfood in 1989 for $15 million. Since the purchase, Frito-Lay has not tampered with the popular Smartfood formula. It has used its marketing expertise to keep sales growing, despite the growing number of challengers crowding the cheesy popcorn market.