Math for Upgrading with the Capitol Buffs

Construction Speed Buff Calculation

If you ever want to calculate what your Construction Time will be if you had the Secretary of Development 50% buff, the Cooperative Construction II 45% buff, or both at the same time…here’s how to do it.

First look up what your current Increase Building Construction Speed is.  You can find it following the below instructions:

In my case, the Original Time is a few seconds shy of 142 days, so that is what I will use for this example. I don’t typically worry about calculating the EXACT time down to the seconds. If it was 141 days and 14 hours I would probably just use 141.5 days

With only the current “Increase Building Construction Speed” (+165%) you can see what the time will be to match it up with what the gray “Upgrade” button currently shows.

The biggest key here is that people mistake the buffs for a % reduction in time; when it's actually a % increase in speed.  Without any buffs at all, you are normally working at 100% speed.  At 100% speed you will finish in the “Original Time”.  Now you add your % speed buffs to it.

In my example I take my normal 100% speed, and add my 165% to it.  So now I am building at 265% speed.  Take the time (142 days) divided by the percentage (265% would be expressed as 2.65) to get the new building time.  142 divided by 2.65 = 53.58 days.  This matches up with the 53 days 14 hours in the gray “Upgrade” button above.

Now let's add in both the Secretary of Development 50% buff AND the Cooperative Construction II  45% buff.  

• Take your normal 100% speed, add the “Increase Building Construction Speed” 165%, add the Secretary of Development 50% buff , and add the Cooperative Construction 45% buff.  100+165+50+45 = 360%.

• Take the time (142 days) divided by the percentage (360% would be expressed as 3.60) to get the new building time.  142 divided by 3.60 = 39.44 days.  So with all of the buffs I will SAVE 102.5 days