78 minus78
20, The pattern goes half (154/2 = 77), plus four (77 + 4 = 81), minus three (81 - 3 = 78), and then repeat.
81 and 78 go into 2106.
78/81 = 0.963 = 96.3%
81 minus 86 = -5
136 minus 81 is 55.
29 minus 81 is -52.
if u minus 59 from 81 you get 22
78
83
78 + 79 + 80 + 80 + 81 + 81 = 479
18/27 minus 44/81 is 10/81