How much per month does it cost to charge your ev? I’m wondering if I’d save enough in fuel to afford an ev lease
Answer will be different for everyone, but if we assume most people will be on a good EV specific electricity tariff then it will be 5-7ppkWh x size of the battery in kWh, plus 10% for charging losses.
So if you need to fully charge a 64kWh vehicle from (fictional) 0%, then it would be (£0.07 x 64)x1.1 = £4.93 - as for the mileage that will get you again it wold be different for every vehicle, how you drive it, and in what weather conditions. If you take a year round average that tends to be best, but for some summer mileage may be much higher due to family trips etc.
As for your leasing question, you've provided no data about your current costs, or mileage covered etc. so impossible to answer really.