Originally Posted by Fred Quimby

keg o beer = 15 gallons

15 gallons = 1920 ounces

1920 / 12 oz glass = 160 glasses of beer

160 / $30 keg cost = 18 cents per beer your cost.

Sell for $3 * 160 = $480 revenue - minus $30 cost.

You clear $450 per keg