Use the information provided below to answer all questions that follow. Thabs Performance Auto, Inc. specialises in the modification of cars. Mr Thabiso Mokwena, the managing director of Thabs Performance Auto wants to measure the performance of the business and has asked you to determine the multifactor productivity of the operations. You have assembled the following data: 2.1 If the multifactor productivity of Thabs Performance Auto's operations last year was 1.4, calculate how much was charged, on average, for each car modification. ( 5 marks) 2.2 Assuming the average price per modification has not changed, calculate the multifactor productivity of Thabs Performance Auto's operations this year (round off answer to 2 decimal places). (4 marks)