I need help with the case study below, based on the questions given below

Mixed Cost Analysis and the Relevant Range (10 marks) The Ramon Company is a manufacturer that is interested in developing a cost formula to estimate the fixed and variable components of its monthly manufacturing overhead costs. The company wishes to use machine-hours as its measure of activity and has gathered the data below for this year and last year: Last Year This Year Month Machine-Hours Overhead Costs Machine Hours Overhead Costs January 21,000 $84,000 21,000 $86,000 February 25,000 $99,000 24,000 $93,000 March 22,000 $89,500 23,000 $93,000 April 23,000 $90,000 22,000 $87,000 May 20,500 $81,500 20,000 $80,000 June 19,000 575,500 18,000 $76 ,500 July 14.000 $70,500 12,000 $67,500 August 10,000 $64,500 13,000 $71,000 September 12,000 $69,000 15.000 $73,500 October 17,000 $75,000 17,000 $72,500 November 16.000 571,500 15,000 $71,000 December 19,000 $78,000 18,000 $75,000 The company leases all of its manufacturing equipment. The lease arrangement calls for a flat monthly fee up to 19.500 machine-hours. If the machine-hours used exceeds 19.500. then the fee becomes strictly variable with respect to the total number of machine- hours consumed during the month. Lease expense is a major element of overhead cost