Agatha christie's company held a local 2-day training program for her and 3 co-workers. they were all paid their regular wages for the time they were released from their regular work. these wages totaled $850 for the group. refreshments and lunch were served for a cost of $45 per person. the instructor who conducted the training charged $300 per day. supplies for the program were $17 per person. travel expenses for the group totaled $105. what was the total cost for the seminar?