Mana-chan shows up in the nick of time, just when the record label's in danger of going bankrupt.
1000 Yen
1000 Yen
1000 yenes x 4 billones de unidades - 400 
billones de yenes = 396 billones de yenes
1000 yenes x 4.000 millones de unidades - 400.000 millones de yenes
 = 396.000 millones de yenes
1000 yen     x     400 milioni