For years, there are 2555 (2012) gross 30.94 percent, down from last year's same period, 2554 (2011) due to increased staff costs in a proportion greater than revenue from services increased. As a result of increased fuel costs. While the net profit margin declined 13.40 percent from the same period of last year which stood at 17.65 percent, because the benefits from using past losses to tax abatement expires, in the past year.For years, there are 2556 (2013) gross 25.09 per cent decrease from the same period of last year due to cost, 2555 (2012) services increased in proportionally greater than revenue from services increased. As a result of the depreciation of vehicles to transport and human resource expenses increased. While the net profit margin decreased from 8.57 percent in the same period of last year which stood at 13.40 percent due to improved yields in person is important.For years, 2557 (2014) with gross profit margin and net profit margin 25.95 per cent cent 8.94 closest to the same period of a year ago.
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