MSD - Google Sheets

	A	B	C	D	E	F	G	O	Q	R	S	T
1	Num Upgrades		Time to reach 1000					Average	Appox. Prod/sec	Diff from prev.
2	0		58.72	58.97	59.3	58.73		58.93	16.97
3	1	40	39.35	39.14				39.245	25.48	8.51
4	2	80	29.46	28.97	28.72			29.05	34.42	8.94
5	3	120	24	23.76				23.88	41.88	7.45
6	4	160	19.77	19.64				19.705	50.75	8.87
7	5	200	16.65	17.44	17.75	17.17	16.62	17.126	58.39	7.64
8	6	240	14.54	14.53	14.56			14.54333333	68.76	10.37
9	7	280	12.5	13.24	13.17			12.97	77.10	8.34
10	8	320	11.52	11.6				11.56	86.51	9.40
11	9	360	10.7	10.488				10.594	94.39	7.89
12	10	MAX	9.72	9.64				9.68	103.31	8.91
13											Average upgrade:	8.63
14	Time for upgrade to pay back
15	40	4.705882353
16	80	9.411764706
17	120	14.11764706
18	160	18.82352941
19	200	23.52941176
20	240	28.23529412
21	280	32.94117647
22	320	37.64705882
23	360	42.35294118
24	400	47.05882353
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100