brand new currency of austin island

 there  will be a  brand new currency in austin island  called the unit   with this there will be new  exchange rate   to the usd  and it will a fixed system.  and along  with  this  there will be a new  sub division  100 ecastos= 1 unit. the  new   exchange rate  is U1.88=$1.00USD. we will also have foreigners  use  usd  if they dont know  the   currency system
Coins
1 ecasto
5 ecastos
10ecastos
25ecastos
50ecastos
75ecastos
1 unit
2 units
5 units
Paper
1 unit
2 units
5 units
10 units
20 units
50 units
100 units
500 units
1,000 units