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DES-ManiacKilla
10th February 2018, 10:59 AM
I'm wondering how the UP payback at http://www.giveupalready.com/showthread.php?97411-Official-Conquest-Siege-Fortification-Covert-Unit-Production-Tech-levels-list is calculated.


UP LEVEL COST PAYBACK
5 3,000 Gold 1 Day
10 4,148 Gold 2 Days
20 11,904 Gold 2 Days
40 36,196 Gold 3 Days
80 117,692 Gold 3 Days
160 413,623 Gold 4 Days
320 1,590,866 Gold 5 Days
640 6,793,639 Gold Humans - 7 days ; Dwarves - 7 days ; Other - 8 days
1280 32,755,309 Gold Humans - 10 days ; Dwarves - 10 days ; Other - 11 days
2560 181,804,578 Gold Humans - 16 days ; Dwarves - 17 days ; Other - 18 days
5120 1,188,105,015 Gold Humans - 27 days ; Dwarves - 28 days ; Other - 30 days
10240 9,383,828,176 Gold Humans - 54 days ; Dwarves - 57 days ; Other - 61 days
20480 92,330,353,929 Gold Humans - 118 days ; Dwarves - 126 days ; Other - 135 days
40960 1,172,245,210,422 Gold Humans - 297 days ; Dwarves - 315 days ; Other - 338 days

Every soldier gives you 1440 gold per day (without race bonus), right?

5 UP: During day 1, the 5 additional soldiers have given you 7200 gold. So payback is 1 day indeed.
10 UP: During day 1, the 5 additional soldiers have given you 7200 gold. So payback is 1 day instead of 2 days.
20 UP: During day 1, the 10 additional soldiers have given you 14400 gold. So payback is 1 day instead of 2 days.
40 UP: During day 1, the 20 additional soldiers have given you 28800 gold. During day 2, the 40 additional soldiers have given you 57600 gold, totalling 86400 gold. So payback is 2 days instead of 3 days.
...
1280 UP: During day 1, the 640 additional soldiers have given you 921600 gold. During day 2, 1843200 gold. After 8 days, you got (1 + 2 + 3 + 4 + 5 + 6 + 7 + 8) * 640 * 1440 = 33177600 gold, while that list says 10-11 days.

Is there something wrong with my calculations or is the list wrong?

Brandonito
10th February 2018, 11:33 AM
One factor you aren't taking in to account:

Buying Unit Production upgrades normally requires you to sell weapons. You lose 30% value doing so. For example 1280 costs 32,755,309, but you have to sell 46,793,299 worth of weapons to get that amount of gold and therefore you have to earn that amount of gold back.

DES-ManiacKilla
10th February 2018, 11:36 AM
Ah yeah, that makes sense :) thanks!