The Luhn Formula: 1  Drop the last digit from the number. The last digit is what we want to check against. 2  Reverse the numbers. 3  Multiply the digits in odd positions (1, 3, 5, etc.) by 2 and subtract 9 to all any result higher than 4  9. Add all the numbers together.
Australia Exports of Goods and Services is at 19.79%, compared to 20.90% last year. This is higher than the long term average of 16.23%. Categories: Components of GDP, International Transactions. Region: Australia. Report: World Development Indicators.
Australia grows five percent of the worldâs wheat crop but provides 12 to 15 percent of the wheat annually traded on the global market. Western Australia, on 12 million acres, grows 80 percent of the wheat exported by Australia and many wheat farmers in the state are in big trouble.