7) 123,456,789-678,91,2345 = 838.4905 - 838.81605 = -0.32555
8) 12,34567,89-56,789123,4 = 7000.3626 - 7000.10706 = 0.25554
7) 123,456,789-678,91,2345 = 838.4905 - 838.81605 = -0.32555
8) 12,34567,89-56,789123,4 = 7000.3626 - 7000.10706 = 0.25554