Time for more bill calculations!
Fresh, tightly packed American bills can go as tight as ~90/cm. I'm sure that Merii is using larger bills and assuming Japanese bills are similar, that's 1,800,000JPY in there, almost double what she allegedly owed for prior damages. (Did she include interest? Hmm...) Converted to USD, that's approximately $16,250. Used bills don't pack as tight though, so you cam probably cut off about 10% too.