Standard pricing subjects are subjects which require little to no off-line preparation by the tutor. These are subjects that tend to be commonly asked for by students.
Having students come to my home allows me to schedule sessions both before and after any particular student. This allows me to reduce my fees in these cases. Meeting a student at a different location eliminates my ability to schedule students the hour before and after the meeting. Unfortunately, I have to pass that cost on to the student. The price may seem a little extreme, but ask yourself what a plumber or computer technician would charge for a house call. For this price, getting a house call from a person with a master's degree is a better deal.
If this cost is too much, might I suggest you consider online tutoring. The online rates are equal to my rates for sessions at my home.
College and Adult
One Person Rate
The rate for one person is $70 per hour.
An individual's group rate is calculated using the formula (n + 1) R / (2n) where n is the number of people in the group and R is a person's single-person price rate (including any promotional discounts). So the individual rate for two people (using the regular rate of $70/hr as an example) would be (2 + 1)($70 per hour) / 4 = $52.50 per hour, three people would be (3 + 1)$70 / 6 = $46.67 per hour, and so on. Promotions that lower an individual's single-person rate are applied before the group rate formula is used.