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[null,"Monthly Profit Record"]
[]
[null,"Month","Total Revenue","Total Expense","Net Profit"]
[null,"January",81000,62000,{"$f":"C5-D5","v":19000}]
[null,"February",80000,68000,{"$f":"C6-D6","v":12000}]
[null,"March",74000,69000,5000]
[null,"April",62000,53000,9000]
[null,"May",62000,60000,2000]
[null,"June",70000,43000,27000]
[null,"July",84000,53000,31000]
[null,"August",58000,29000,{"$f":"C12-D12","v":29000}]