From me: if you’re not in the mood for all the calculations, you can just use this auto calc…
A/N: “k” stands for a thousand, “m” stands for a million.
After you buy the 1st 10, it costs 10k each for 10 more bums (100k total). If you choose to release (sell) your bums, release ALL (10) and you’ll get 1/2 the current price (10k / 2 = 5k) for each, which was your original investment. If, instead, you bought 10 more bums (100k total), now you’ve spent 150k total. You own 20 bums, and the current cost is 15k for your next batch of 10.
If you need your blood back to improve abilities or buy abilities or something, you can release ALL (20) bums and you’ll earn (15k / 2 = 7.5k * 20 = 150k) 150k which is your original investment. So, you don’t lose a drop of blood, and all the while that you are dominating the bums, they’re paying you interest. Therefore, there’s no reason to ever put a drop of blood into the blood bank, except to get the 3 trophies, and that’ll cost you 11,111,111 blood to get all three trophies and FPs if you wait to get all 3 at once.
It’s more cost effective to have 10 Joggers and 10 Patients than 20 Joggers…
10 Joggers + 10 Patients: costs 450k; payout 9k; 20 Joggers: costs 600k; payout 8k
Keep your upkeep (costs from abilities) to less than 20% of your gross income, and if possible, keep it below 10%. This will give you the fastest growth rate. If your upkeep is 50% of your income, you’ll have a much slower development in the long run.
Work your way up to 10 Football Teams; then go back and get 20 Cops + Patients + Joggers + Bums; then if you still don’t have enough blood for your second 10 Football Teams, go up to 30s and then when you have enough, sell everything and buy the second 10 Football teams; then start rebuilding.
Class A minions: Bum, Jogger, Patient, Cop, Football, Nurse, Paramedic, Waitress, Ninja, Mime, Hacker, Bank Teller; Keep them all the same # if possible. ROI 2.0%
Bum: Cost for 1st 10 = 50k; income = 1k;
Park Jogger: Cost for 1st 10 = 200k; income = 4k;
Patient: Cost for 1st 10 = 250k; income = 5k;
Cop: Cost for 1st 10 = 1m; income from 1st 10 = 20k;
Football Team: Cost for 1st 10 = 3,5m; income = 70k;
Nurse: Cost for 1st 10 = 6m; income = 120k; lvl 12
Paramedic: Cost for 1st 10 = 7,5m; income = 150k; lvl 15
Waitress: Cost for 1st 10 = 9m; income = 180k; lvl 17
Ninjas: Cost for 1st 10 = 10m; income = 200k; lvl 19
Mime: Cost for 1st 10 = 12m; income = 240k; lvl 22
Hacker: Cost for 1st 10 = 12,5m; income = 250 k; lvl 24
Bank Teller: Cost for 1st 10 = 40m; income = 800k; lvl 32
Class B minion: ROI = 2.167%; College Fraternity: Cost for 1st 10 = 30m; income = 650k; lvl 28; so you want to get your 1st 10 Frats ASAP, and do NOT release your 10 Frats in order to get your 1st 10 Bankers, because the Frat has a higher ROI than the bankers. In fact, once you get Frats, you’ll probably never release them because they are your highest income earners.
Class C minion: ROI = 1.25%, SWAT – Cost for 1st 10 = 120m; income = 1,5m; lvl 35; keep them a little behind the Class A; get 10 of them after you have 10 of everything else, before you get 20 Frats; then get 20 Frats and then 20 of all Class A, then 30 Frats, then 30 of all Class A; then 20 SWAT
Class D minion: ROI = 0.8%. Law Firm – Cost for 1st 10 = 250m; income = 2m; lvl 40; Once you hit level 40, release ALL minions and then start over… buy 10 Law Firms; 30 SWAT; 60 Frat; 50 Class A’s
Minions required to maximize blood flow
The relative numbers are pretty much constant: 32% Class A, 35% Class B, 20% Class C, 13% Class D.
T (Blood) I (Income) millions millions Class A Class B Class C Class D 2,080 16 40 40 20 10 22,941 61 140 150 80 50 80,529 117 270 290 160 100 173,130 173 390 420 240 150 300,743 229 520 560 320 200 463,370 285 640 690 400 250 661,010 341 770 830 470 300 893,663 397 890 970 550 350 1,161,329 453 1,020 1,100 630 400 1,464,008 509 1,140 1,240 710 450 1,801,700 565 1,270 1,370 790 500
Source: the table http://forums.zynga.com/showthread.php?t=144969; the classes and most of the numbers (I counted from the Cops upward in Class A) are from http://forums.zynga.com/showthread.php?t=102766
Edited and expanded for clarity by me.