PDA

View Full Version : Why are the percents on the upgrades short



Skyraiders
02-21-2013, 06:03 PM
Guild upgrades go up in increments of 5% so why are they short 1% on the second upgrade and so far the third upgrade. Does it get added at the end. Can anyone help. Sent in a ticket have not gotten response yet

GreenGuru
02-21-2013, 08:23 PM
I noticed this as well. Since each upgrade says it increases it by 5% we can only assume this is an error/glitch until told otherwise.

emcee
02-21-2013, 08:36 PM
Yeah I sent ticket thinking it was an error as we have 14% building cost reduction bonus and 14% building time reduction which is odd compared to MW and CC.

emcee
02-23-2013, 01:20 AM
The fourth building cost reduction does not bring total to 19% but 18%. Last bonus cost in this area costs 24 mil.

Tony Centers
02-23-2013, 10:14 AM
It is because these reductions are multiplicative, not additive. Two 5% reductions aren't a reduction of 10%, they are a reduction of 9.75% (1 - (1-5%) x (1-5%) = 1 - 95% x 95% = 1 - 90.25% = 9.75%). Gree's interface rounds that to 9%, but the math behind it is using 9.75%. Four reductions gives 1-95%^4 = 18.5% (which shows at 18%) and five reductions gives 1-95%^5 = 22.6% (which shows as 22%).

Q-Ball
02-23-2013, 10:27 AM
It is because these reductions are multiplicative, not additive. Two 5% reductions aren't a reduction of 10%, they are a reduction of 9.75% (1 - (1-5%) x (1-5%) = 1 - 95% x 95% = 1 - 90.25% = 9.75%). Gree's interface rounds that to 9%, but the math behind it is using 9.75%. Four reductions gives 1-95%^4 = 18.5% (which shows at 18%) and five reductions gives 1-95%^5 = 22.6% (which shows as 22%).

Can I hire you to do my taxes too?

baddy
02-23-2013, 11:02 AM
Guild upgrades go up in increments of 5% so why are they short 1% on the second upgrade and so far the third upgrade. Does it get added at the end. Can anyone help. Sent in a ticket have not gotten response yet

Come Join Baddy's Bunch Guild 487-317-321
Our goal is to be a consistent top 100 Guild!
Daily players looking willing to contribute cash and stones.
Gem players welcome, but buying gems is optional.
Leader is veteran of MC and CC.

Altergray
02-23-2013, 12:06 PM
It is because these reductions are multiplicative, not additive. Two 5% reductions aren't a reduction of 10%, they are a reduction of 9.75% (1 - (1-5%) x (1-5%) = 1 - 95% x 95% = 1 - 90.25% = 9.75%). Gree's interface rounds that to 9%, but the math behind it is using 9.75%. Four reductions gives 1-95%^4 = 18.5% (which shows at 18%) and five reductions gives 1-95%^5 = 22.6% (which shows as 22%).

All of a sudden I thought I was reading the "Terms and Conditions". I was reading it trying to convince myself I knew EXACTLY what I was seeing...but all I get in my head is 5% x 5% = Jello (buffalo*6) + canoe paddle = 9.75%

SoccerStud
02-23-2013, 12:09 PM
Tony centers is right.

Skyraiders
02-23-2013, 12:29 PM
It is because these reductions are multiplicative, not additive. Two 5% reductions aren't a reduction of 10%, they are a reduction of 9.75% (1 - (1-5%) x (1-5%) = 1 - 95% x 95% = 1 - 90.25% = 9.75%). Gree's interface rounds that to 9%, but the math behind it is using 9.75%. Four reductions gives 1-95%^4 = 18.5% (which shows at 18%) and five reductions gives 1-95%^5 = 22.6% (which shows as 22%).

Thanks I appreciate that