Travis Inc. employed several maintenance engineers to keep the equipment running in peak condition. Over the past eight months, Travis incurred the following maintenance cost for these engineers. Plant activity is best measured by direct labor hours.

month	direct labour hour	maintenance cost (RM)
January	1,700	14,300
February	1,900	15,200
March	1,800	16,700
April	1,600	14,000
May	1,500	14,300
June	1,300	13,000
July	1,100	12,800
August	1,400	14,200

Required: Using the high-low method, determine the fixed and variable components of the maintenance costs.