June 40 sign ups July 50 sign ups
to estimate August I divide June / July (40/50) = .8
I subtract .8 from 1 giving me a growth rate of 20% (.2).
I multiple 50 * 1.2 to get an expected sign up of 60
I understand the above..now look at this
September i had 881 signups October i had 47 signups
If I want to estimate November signups this is what I'm doing
881 / 47 = 18.74 1 - 18.74 = -17.74
do i multiple 47 * -17.74? i don't think its right...can someone help me with my math here.