In 2019 a US investor purchases Australian dollars at an exchange rate of $1 = 1.45 Australian dollars. In 2020 the exchange rate is $1 = 1.30 Australian dollars. If his investment was $10,000. How much did he win or lose? If your answer is a loss use the minus sign (Ex loss 300 write -300) Round your answer to zero decimal places Don't use comma separators