Conversion Rate Formula

CR = Conversions / Clicks * 100
This is the most simple and significant formula for advertisers, the conversion rate it means just how many people that click in your ad finally made a purchase. This is an example:

Let’s see 1000 people click in your online Ad, and out of those 1,000 just 25 finally made a purchased or any other action that you considered conversion (download a brochure, sign up for a newsletter or more), on this case your conversion rate is 0.01%

CR = (25/1000) * 100 =  2.5%

Website Success Formula

B = V x C x L

Where:

B = amount of business done by the site
V = unique visitors coming to the site
C = conversion rate (the percentage of visitors who become customers); note that the concept of conversion applies not only to ecommerce sites, but to any site where there is something you want users to do)
L = loyalty rate (the degree to which customers return to conduct repeat business)

C= 4m + 3v + 2(i-f) – 2a

Where:

C = Conversion
M = Motivation (what is the motivation of the user when he/she gets to your page? Do they have a level of interest?)
V = Clarity of Value Proposition (what is the valuable offer to your clients)
I = Incentive (sense of urgency, offer valuable exchange for an action)
F = Friction (elements to process, difficult forms can cause friction)
A = Anxiety (entering sensitive or personal information)

• Value Prop and Incentive are Value Contributors
• Friction and Anxiety are Value Inhibitors
• You need the Contributors to outweigh the Inhibitors 

The value of this formula is that it represents each factor that directly affects the conversion of a visitor on a landing page.

Potential Lost Revenues from Landing Pages

(RPV * NVL) * BR = LRPV

Where:

RPV = Revenue per visitor
LRPV = Lost Revenue Per Visitor
NVL = Number of visitors who land on landing page
BR = Bounce rate

(RPV * NVL) is also known as RETS = Revenue Estimate For The Traffic Source

Viral Marketing Formula

Where:

Custs = Initial set of costumers
K = Invitations send by each new customer * Conversions %
ct = Viral cycle time
t = time