MDHI 10-Q STRONG $$$$ Gross profit generated during six months ended December 31, 2014 and 2013 was $409,022 and $357,980, respectively. The gross profit margin for six months ended December 31, 2014 and 2013 was 80% and 69%, respectively. The increase in gross profit margin was mainly due to more revenue generated from monitoring services which has higher gross profit margin.