Does it cost less to upgrade from Premium?

[Excels]

Hello, I was wondering if I buy Premium, will it lower the price for getting Supreme?

Regards,
Pliy

 

[DEKU]

Yes, since it will be an upgrade

 

[Ivain]

It costs the difference between premium and supreme.
Premium = $10
Supreme = $25
Premium To Supreme = $15

 

[Excels]

It costs the difference between premium and supreme.
Premium = $10
Supreme = $25
Premium To Supreme = $15

Yes, since it will be an upgrade

Thank you both for your answer!