This morning Cube announced that it has closed a Seed round worth just over $5 million. The software startup, focused on financial planning and analysis (FP&A) work, raised $3.8 million of the total recently, with remaining $1.25 million having come in an earlier Pre-Seed round. Christina Ross, Cube’s CEO and founder, told TechCrunch that she started raising the most recent tranche of capital in March, winding up with a few term sheets within a few weeks. Eventually the startup picked Bonfire Ventures‘ Brett Queener to lead the round, with Operator…