Blackbaud said the decline stemmed primarily from a drop in license sales of Raiser's Edge, which also caused consulting service and maintenance revenue for the unit to fall. Charleston, S.C.-based Blackbaud expects a continuing decline in the near future as customers move to its cloud-based Raiser's Edge NXT. The sale of a small subsidiary and the change in the value of the dollar also hurt results. The biggest segment, the General Markets Business Unit, reported $313.9 million in revenue last year, up 16 percent from $270.1 million the prior year. The Enterprise Customer Unit reported $279.9 million in revenue for 2015, up 14.2 percent from $245.1 million in 2014. Overall, revenue hit $637.9 million, up from $564.4 million the prior year.