"I just want to know one thing!" - Fire Emblem: Fates in Fire Emblem Fates Posted July 21 · Report reply On 5/27/2020 at 6:15 PM, Alistair said: I know that children's growth rates are the average of their base growths and the variable parent's. But if that average isn't a whole number (like 40 and 35 being 37.5), does it get rounded? If so, is it rounded up or down? It gets rounded down. Child growths from auto-levels round to the nearest integer in the usual way. Effie!Percy has 0 base Mag and gets (putatively) 7.5 Mag growth in Wyvern Rider. When you recruit him immediately after Chapter 15, he‘ll be at level 17, and he should have 0 Mag if it rounds down and 1 otherwise. I just checked, and he has 0.