CKCertKit Pro
Sign up

Field 06

Marketing & Sales

Marketing and sales credentials from CIM, AMA, DMI, HubSpot, SMA and NASP — free to full diploma.

Exam blueprints, week-by-week study plans, formula calculators and frameworks — plus the real cost of every certification in this field.

Open the prep libraryBrowse certifications6 certifications
up to $5,900

6 of 6 certifications

HUBSPOT-MS

HubSpot Marketing Software Certification

HubSpot Academy

EntryTraining included

Total cost

Free

NAEUGCCAPAC
CPSP

Certified Professional Sales Person

NASP

ProfessionalTraining included

Total cost

$695 – $995

NA
PCM

Professional Certified Marketer

AMA

Professional

Total cost

$849 – $1,999

NA
CSLP

Certified Sales Leadership Professional

SMA

SeniorTraining included

Total cost

$1,000 – $2,500

NAEU
CDMP

Certified Digital Marketing Professional

DMI

ProfessionalTraining included

Total cost

$1,300 – $1,900

EUGCC
CIM-L6

CIM Level 6 Diploma in Professional & Digital Marketing

CIM

Professional

Total cost

$2,500 – $5,900

EUGCC

Tools for this field

Run the numbers before you commit to a credential.

Investment Calculator

Itemize exam, application, prep and membership costs.

Free account

Comparison Tool

Put 2–4 certifications side by side.

Free account

Path Finder

Five questions, your top three matches.

Frameworks library

The models examiners expect you to apply, step by step.

AIDA Model

The classic hierarchy-of-effects funnel — Attention, Interest, Desire, Action — used to structure campaigns, landing pages and sales conversations.

  1. 1
  2. 2
  3. 3
  4. 4
  5. 5
  6. 6
When to use: When designing or auditing a campaign, landing page or outbound sequence, and to locate exactly where the funnel is leaking.

7Ps Marketing Mix

The extended services marketing mix — Product, Price, Place, Promotion, People, Process, Physical Evidence — used to build or audit a go-to-market plan.

  1. 1
  2. 2
  3. 3
  4. 4
  5. 5
  6. 6
  7. 7
  8. 8
When to use: When launching a product or service, entering a new market, or auditing why an offer with good traffic still fails to convert.

Pirate Metrics (AARRR)

Dave McClure's growth funnel — Acquisition, Activation, Retention, Referral, Revenue — that assigns one measurable metric to each stage of the customer lifecycle.

  1. 1
  2. 2
  3. 3
  4. 4
  5. 5
  6. 6
  7. 7
When to use: For subscription, app and SaaS growth work — to decide where growth effort actually pays off rather than defaulting to more ad spend.

Formulas library

Every formula with variables, interpretation thresholds and a worked example.

Customer Acquisition Cost (CAC)

CAC = Total sales and marketing spend / New customers acquired

S
Total sales and marketing spend in the period (USD)
N
New customers acquired in the same period (customers)
  • CAC payback < 12 months — Efficient
  • CAC payback 12-18 months — Acceptable
  • CAC payback > 18 months — Expensive

Worked example

A SaaS company spends $180,000 on sales and marketing in a quarter and signs 150 new customers.

CAC = 180,000 / 150 = 1,200

At $150 monthly revenue per customer, payback is 8 months — healthy if churn stays low.

Try: A SaaS company spends $180,000 on sales and marketing in a quarter and signs 150 new customers.

Customer Lifetime Value (LTV)

LTV = Average revenue per account x Gross margin % / Churn rate

ARPA
Average revenue per account per month (USD/month)
GM
Gross margin (ratio)
C
Monthly customer churn rate (ratio)
  • LTV > 3x CAC — Strong unit economics
  • LTV 1-3x CAC — Thin
  • LTV < CAC — Losing money per customer

Worked example

ARPA $150/month, gross margin 80%, monthly churn 2%.

LTV = 150 x 0.80 / 0.02 = 120 / 0.02 = 6,000

Average customer lifetime is 50 months; against $1,200 CAC the ratio is a healthy 5:1.

Try: ARPA $150/month, gross margin 80%, monthly churn 2%.

LTV:CAC Ratio

Ratio = LTV / CAC

LTV
Customer lifetime value (USD)
CAC
Customer acquisition cost (USD)
  • Ratio < 1 — Unsustainable
  • Ratio 1 - 3 — Below target
  • Ratio ≈ 3 — Healthy benchmark
  • Ratio > 5 — Under-investing

Worked example

LTV of $6,000 against CAC of $1,200.

Ratio = 6,000 / 1,200 = 5.0

Above the 3:1 benchmark — the company can increase acquisition spend to accelerate growth.

Try: LTV of $6,000 against CAC of $1,200.

Return on Ad Spend (ROAS)

ROAS = Revenue attributable to ads / Ad spend

R
Revenue attributed to the campaign (USD)
A
Ad spend for the campaign (USD)
  • ROAS < 1 — Losing money
  • ROAS 1 - 4 — Marginal to acceptable
  • ROAS >= 4 — Strong

Worked example

An e-commerce campaign spends $25,000 and drives $110,000 of attributed revenue at 45% gross margin.

ROAS = 110,000 / 25,000 = 4.4; break-even ROAS = 1 / 0.45 = 2.2

Double the break-even threshold — scale the campaign while ROAS stays above 2.2.

Try: An e-commerce campaign spends $25,000 and drives $110,000 of attributed revenue at 45% gross margin.

Conversion Rate

CR = (Conversions / Total visitors or leads) x 100

C
Conversions (purchases, signups, qualified leads) (conversions)
V
Visitors or leads entering the step (visits)
  • E-commerce > 3% — Above average
  • E-commerce 1-3% — Typical
  • E-commerce < 1% — Underperforming

Worked example

A landing page receives 24,000 sessions in a month and produces 660 signups.

CR = 660 / 24,000 x 100 = 2.75

A lift to 3.5% would add roughly 180 signups a month at zero extra ad spend.

Try: A landing page receives 24,000 sessions in a month and produces 660 signups.

Churn Rate

Churn % = (Customers lost in period / Customers at start of period) x 100

L
Customers lost during the period (customers)
S
Customers at the start of the period (customers)
  • < 1% monthly — Excellent
  • 1-3% monthly — Acceptable
  • > 5% monthly — Critical

Worked example

A subscription business starts the month with 3,200 customers and loses 64.

Churn = 64 / 3,200 x 100 = 2.0

Implies a 50-month average lifetime; cutting churn to 1% would double LTV.

Try: A subscription business starts the month with 3,200 customers and loses 64.