13 days ago3 points(+0/-0/+3Score on mirror)1 child
yeah, well, looking at the jumps, it looks like maybe somewhere between $10-$20/hr or $20k-$30k a year per child estimated, at least at places I am or have been, so you could just add whatever multiple to estimate for more kids
For one kid, you need an extra bedroom. If the second is the opposite sex, you need two. After that, you can buy bunkbeds.
Same with hand-me-downs and even time costs as the older ones start doing chores.