Using the high-low method and the information below, compute:

the variable electricity cost per machine hour;

the monthly fixed electricity cost;

the total variable electricity costs and fixed electricity costs for the six-month period;

Volume in Electricity Machine Hours Costs Month $ July 6,000 60,000 August 5,000 53,000 September 4,500 49,500 October 4,000 46,000 November 3,500 42,500 December 3,000 39,000 Six-month total 26,000 290,000