The rate of a voice over actor is mainly influenced by the length and use of the product.
Also voice actors that have a good reputation can coast more the the others.
But at Voicfy you can easly find the artist that fits to your budget.
Each artist on voicfy is free to choose his rate.
If you create your casting you can set a budget and the artist then can decide if can do the work for your budget.
But they also have the choise to set there own rate.