Having a multiplier of 1x, the point value of CFDs at IBKR is 1 unit of its currency of denomination. Accordingly, a 1 CFD contract position's value will vary by 1 unit of the CFD's currency of denomination for a change of 1 point of the CFD price.
Additional Information
Disclaimer: CFDs are complex instruments and come with a high risk of losing money rapidly due to leverage. 57.9% of retail investor accounts lose money when trading CFDs with IBKR. You should consider whether you understand how CFDs work and whether you can afford to take the high risk of losing your money.