Here’s the given step-wise guide about how to cancel Amazon Prime: Let’s know in a detailed way. 

Go to the Amazon Website 

You must open Amazon.com and log in with your credentials, such as ID and password. 

Navigate To your Account Settings’

After logging in, you can go to the Account & list option and click on the Prime Membership option.

Manage Membership

On the left side of your screen, you have to click on the "Manage Membership” option 

Confirm Cancellation 

At this point, Amazon may offer you alternatives like reminders or discounts - you must scroll down and select Continue to cancel the option, until it can be fully cancelled. 

Final confirm 

Once you confirm it, your membership will end at the end of your current billing period. 

These are the steps to cancel your account. Click the link to know more.