Because of all the money the European Union has been feeding the Greek to help the Euro stay alive, the government has had to make some quite big changes to actually be able to pay back the countries involved. For a regular person the amounts seem astronomical, but one has to understand that in the national level these are still within reasonable limits.
Countries inside the European Union have lent 2,000 billion euros to Ireland, Belgium, Portugal, Spain and to Greece. All of these were done with the intention of keeping the EURO alive, and also keep EU members out of bankruptcy.
Thanks to these loans, Greece has had to make quite large changes in their habits to ensure their capability for a reimbursement. Their parlament has now approved of a tight regimen which will help them keep their costs down. These rules will cause them to save 28 billion, and this was an obligation for their next loan of 12 billion.