The arrival of keg beer as a solution to quality problems in the pub, and the rise of beer in cans, meant bottled beer sales went into a slide: slowly at first, from 34 per cent of all beer sold in 1960 to 27 per cent in 1969, and then rapidly, 20 per cent in 1974, 12 per cent in 1979, nine per cent in 1984.
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In business, a principal is a person with primary authority and responsibility to make decisions. The principal is often an owner, operator, partner or high-ranking manager.rincipal-Agent Examples. In a real estate office, a broker is a principal, and other agents act on his behalf in the office. If an agent acts illegally, the office and principal broker face potential liability.