http://www.theedgeproperty.com/content/ec-does-it-%E2%80%93-65-profit-margin-ec-sold-2014-2015 The highest profit of $1.1 million or 190% was traced to a unit at Bishan Loft (See Table 2). The owner had purchased the unit direct from developer NTUC Choice Homes and Chip Eng Leong back in 2001 for $426 psf. He sold it in March 2014 for $1,234 psf.