1st number: 5
5*88 = 440 + 88 = 528 / 44 = 12 -2 = 10 ( double the original number
2nd number: 7
7*88= 616 +88 = 704 /44 = 16 - 2 =14 ( double the original number)
3rd number: 2
2*88 = 176 + 88 = 264 /44 = 6 -2 = 4 ( double the original number)
4th number: 1
1 * 88 = 88 +88 = 176 /44 = 4 -2 = 2 ( double the original number)
the result is double the original number