Specifying a single founder, doing a series a and then exiting, I get NaN as the result: https://www.fundingsimulator.com/?data=BzUba%2Bf%3BFoo+Corp%3BJohn%2C100%3Bp%2CSeries+A%2C10000000%2C50000000%2C10%2C1%2C%3B100000000%2C20 