Please refer to below spreadsheet for calculation and answer. Cell reference also provided.

Cell reference -

Hope this will help, please do comment if you need any further explanation. Your feedback would be highly appreciated.
Aunt Sally has just returned from a long trip to Europe. She started the trip with $7,500 in her pocket. She spent...
You just returned from a long trip to Asia. You started your trip with $12,600 in your pocket. You spent JPY279,000 in Japan, CNY18,450 in China, and SGD3,160 in Singapore. The exchange rates were $1 = JPY98, $1 = CNY7.1408, and SGD1 = $0.7318. How many dollars did you have left by the time you returned to the U.S.? $4,456.37 $5,296.74 $5,067.30 $4,620.28 $4,856.83
Aunt Sally won a lottery prize of $9,700 and decided to make a trip overseas. She spent SGD2,890 in Singapore, CNY10,500 in China, and JPY243,000 in Japan. The exchange rates were SGD1 = $0.7413, $1 = CNY7.0312, and $1 = JPY99.30. She donated the remaining money to an environmental organization when she returned to the US. How many dollars did Aunt Sally donate to the environmental organization? $4,021.29 $3,858.60 $3,617.17 $3,418.15 $3,266.39