Yumeko excited to face Kirari The next day, Ryota confronts Yumeko wondering if she's really prepared to go up against Kirari without knowing what she may do.
There maybe 1-2cm deviation due to the different measurement methods! This should theoretically put them in the billions range, as we see the characters interact with handheld games, televisions, and the like.
Itsuki becomes determined and takes the risk.
So even if she gets just a small cut, she is still more than just well off.