No two electrical jobs are identical, so no two cost's are the same. There are so many factors determining cost, such as distance from the main panel to the charger outlet location, remaining existing capacity in the panel, breaker space availability in the panel, running new conduit and pulling wires either underground or through walls or crawlspace, and installing a new box/charger mount in the destination. My friend needed to install a new service panel/meter from the power pole for his 220 single phase in the right location in the front of his house. Cost: $3300 not counting the $500 Tesla charger. I needed to pull out 40' of bricks in my driveway and trench to install underground 1.5"conduit (for the 6 gage wires) to get the power to my detached garage. After a lot of my own work and some from contractors, my cost was just over $1K, and add the $500 charger on to that. Your $200 cost looks like a walk in the park!