That depends on the value of x.
200
The positive integer factors of 614 are: 1, 2, 307, 614
If it is a proper one and not a mule it is worth £614
4x-614 = -610
614-50 = 564
1, 2, 307, 614
614
614 is an integer, not a fraction.
614 + 14 = 628
358
1614