_ Demand data is shown in the table below. Use the midpoint formula to calculate percentage changes. Quantity Demanded 380 When price falls from $6 to $4, this represents a [Select] V percent change. When quantity increases from 380 to 420 units, this represents a [Select] V percent change. The price-elasticity of demand coefcient is equal to [Select] V along this segment of the demand curve, indicating that demand is relatively [ Select ] V _ By reducing price from $6 to $4, the rm caused its total revenue to [ Select ] V