Worked examples / Customers: sign-up, checkout and fees
An account required before buying
Shoppers must create an account before they can buy. 3,000 reach the checkout each month, and one in five honest shoppers leaves instead.
It costs more than it gets back
It costs $26,730 a month and gets back $2,250: $24,480 a month worse off.
It costs$26,730a month
It gets back$2,250what it stops, and any fee
- Of the 603 shoppers it screens out each month, 594 are honest shoppers: 98.5% of everyone screened out.
- Still getting through: 21 of the 30 fraudulent orders.
- It costs the people going through it 150 hours a month, 30.2 of them from people who do not get through.
Put in your own numbers
This is a worked example with illustrative figures, not data about any real person or company. Change any of them in the calculator and the answer changes with them.
How this answer was worked out
| Step 1 | costs $26,730, gets back $2,250: -$24,480 |
Every formula is written out on the formulas page.
What the calculator asks you
- How many steps, and how many people arrive
- What each wanted person is worth, and the share each step turns away
- The share it is meant to stop, what each costs, and the share each step stops
- What a step costs the people going through it
- Any fee paid by those who get through
Open the calculator
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