More than half of Southwest Florida business firms responding to a local survey still had employees working from home during the last week of May. Twenty percent of the respondents from both large and small firms had less than 20 percent of their employees back working at the office after working from home because of the coronavirus pandemic, according to a report produced for the Lee County Economic Development Organization and the Horizon Council of Lee County by Florida Gulf Coast University’s Regional Economic Research Institute. Fifty-six percent of respondents reported a decrease in customer demand of more than 50 percent as a result of the coronavirus and sales revenue decreased more than 50 percent for 60 percent of all firms. On the flip side, 15 percent of respondents reported an increase in demand and 9 percent of the surveyed respondents saw sales increase in May. Most executives – 61 percent – expect the adverse effects of the coronavirus to be temporary, according to the FGCU survey results released Wednesday.