Camp Rainbow offers overnight summer camp programs for children ages 10 to 14 every summer during June and July. Each camp session is one week and can accommodate up to 200 children. The camp is not coed, so boys attend during the odd-numbered weeks and girls attend during the even-numbered weeks. While at the camp, participants make crafts, participate in various sports, help care for the camps resident animals, have cookouts and hayrides, and help assemble toys for local underprivileged children. The camp provides all food as well as materials for all craft classes and the toys to be assembled. One cabin can accommodate up to 10 children, and one camp counselor is assigned to each cabin. Three camp managers are on-site regardless of the number of campers enrolled.

Following is the cost information for Camp Rainbows operations last summer: Week Number of Campers Cost to Run Camp 1 90 $ 8,050 2 118 8,460 3 156 10,900 4 174 11,100 5 188 13,685 6 184 14,300 7 170 12,325 8 156 11,270 Required: Using the high-low method, calculate Camp Rainbows total fixed operating costs and variable operating cost per child. Using the high-low method results, calculate the camps expected operating cost if 170 children attend a session.

I am getting: Fixed - $2309 and Variable Rate- 63.78% Expected cost of $8409 all showing wrong. What am I doing wrong?