Standard to plus

good day,
i wish to upgrade my subscription from standard to Plus,
i am just gonna pay the difference amount or i will pay the full plus version amount? thank you

When upgrading your subscription from the Standard to the Plus version, the additional amount you need to pay will be prorated. This means you’ll pay the difference between the Plus version and what you’ve already paid for the Standard version for the remaining period of your subscription.

so if i upgrade to plus version today, ill be paying the difference of standard and plus which is 50usd (49USD - 99USD). then next month i will start paying the full price of plus version which is 99USD. did i understand it correctly. thank you