A machine manufacturer sells each machine for $$6,800.$ The fixed costs are $$271,100$ per annum, variable costs are $$2,100$ per machine, and the production capacity is $67$ machines in a year. What is the break$-$even volume? What is the break$-$even revenue? What is break$-$even as a percent of capacity per annum? What is the profit or loss made if $66$ machines are sold in a year?