Of course this will vary, depending on how discharged the car is when you plug it in, how large the battery is, and your local electrical rates at the time of charging.
As an example, if you have an EV that needs 50kW put into the battery in order for it to reach full charge, and if your local electrical rate is $0.10 per kWh, it will cost 50 x $0.10 = $5.00 to fully recharge the EV.
Most EVs can travel about 250 – 300kms using 50 kWh, or about $5.00 worth of electricity, using the above example.