Data for the market for graham crackers is shown below. Calculate the elasticity of demand between the following prices.
Price of crackers Quantity Demanded (per month)
$3 80
$2.5 120
$2 160
$1.5 200
$1 240
$1.00 - $1.50: ___________________________________
$1.50 - $2.00: ___________________________________
$2.00 - $2.50: ___________________________________
$2.50 - $3.00: ___________________________________
If the price of graham crackers is $2.50 should firms raise or lower their prices if they want to increase revenue? Explain this in terms of elasticity.