Suppose you own a tax preparation services company, appropriately named "MYBA Services" (MYBA = 'Minimize Your Burden of Assessment') with fixed costs of $3,000/month and marginal costs of $25/appt. If the price is $60/appt, 500 appointments would be sold. If the price is $50/appt, 760 appointments would be sold. a.) (3) Use these figures to calculate the price elasticity of demand for your services