Mowbray Limited employed several maintenance engineers to keep the equipment running in peak condition. Over the past eight months, Mowbray incurred the following maintenance cost for these engineers. Plant activity is best measured by direct labour hours. {:[{:[" Period "],[" January "]:},{:[" Direct Labour "],[" Hours "]:},{:[" Maintenance "],[" Cost "],[" R14,300 "]:}],[" February ",1","700," R15,200 "],[" March ",1","900," R16,700 "],[" April ",1","600," R14,000 "],[" May ",1","500," R14,300 "],[" June ",1","300," R13,000 "],[" July ",1","100," R12,800 "],[" August ",1","400," R14,200 "]:} Required: Using the high-low method, determine the fixed and variable components of the maintenance costs