How much commission do Firdex charge?

https://firdex.com/en

It is strongly advised against trading with Firdex.

Firdex claims to be a forex CFD provider based in Canada, but lacks the required license from the Investment Industry Regulatory Organization of Canada (IIROC). The Comisión Nacional del Mercado de Valores (CNMV) has added FIRDEX to its warning list for providing investment services without authorization. This serves as a warning sign.

In light of this, Firdex is not a regulated broker. To protect themselves from potential fraud schemes, investors are highly recommended to avoid such unregulated brokers as Firdex and instead choose fully regulated ones.