A fried chicken franchise finds that the demand equation for its new roast chicken product, "Roasted Rooster," is given by 38 D0.6 where p is the price (in dollars) per quarter-chicken serving and q is the number of quarter-chicken servings that can be sold per hour at this price. Find E(p) E(p) % decrease in demand. Find the price elasticity of demand when the price is set at $4.20 per serving. At a price of $4.20, a 1% increase in price leads to a Interpret the result. At a price of $4.20, the demand is inelastic They should raise the price per serving in order to increase revenue.